Euler's totient function

Quality:

Euler's totient function - function which gives the number of integers relatively prime to and not greater than its input. Article “Euler's totient function” in Simple English Wikipedia has 19.5 points for quality (as of July 1, 2026). The article contains 3 references and 2 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Simple English) language version.

Since the creation of article “Euler's totient function”, its content was written by 12 registered users of Simple English Wikipedia and edited by 1399 registered Wikipedia users in all languages.

The article is cited 30 times in Simple English Wikipedia and cited 6824 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Simple English): #1058 in August 2011
• Global: #518 in December 2001

The highest popularity rank from 2008:

• Local (Simple English): #2878 in May 2017
• Global: #24036 in December 2013

There are 38 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Euler's totient function		68.0015
2	Spanish (es) Función φ de Euler		57.7797
3	Galician (gl) Función totiente de Euler		52.2346
4	Chinese (zh) 欧拉函数		45.8701
5	Russian (ru) Функция Эйлера		43.5949
6	Greek (el) Συνάρτηση Όιλερ		39.182
7	Hungarian (hu) Euler-függvény		37.922
8	French (fr) Indicatrice d'Euler		33.5927
9	Indonesian (id) Fungsi phi Euler		33.3104
10	Tamil (ta) ஆய்லரின் டோஷண்ட் சார்பு		32.9617

The following table shows the most popular language versions of the article.

#	Language	Popularity award	Relative popularity
1	English (en) Euler's totient function		4 644 896
2	German (de) Eulersche Phi-Funktion		953 726
3	Russian (ru) Функция Эйлера		906 251
4	Spanish (es) Función φ de Euler		502 600
5	French (fr) Indicatrice d'Euler		476 022
6	Japanese (ja) オイラーのφ関数		448 084
7	Chinese (zh) 欧拉函数		374 025
8	Polish (pl) Funkcja φ		331 745
9	Italian (it) Funzione φ di Eulero		316 873
10	Korean (ko) 오일러 피 함수		184 676

The following table shows the language versions of the article with the highest popularity in the last month.

#	Language	Popularity award	Relative popularity
1	English (en) Euler's totient function		10 472
2	Russian (ru) Функция Эйлера		1 938
3	German (de) Eulersche Phi-Funktion		1 707
4	French (fr) Indicatrice d'Euler		1 470
5	Japanese (ja) オイラーのφ関数		1 221
6	Spanish (es) Función φ de Euler		895
7	Chinese (zh) 欧拉函数		893
8	Italian (it) Funzione φ di Eulero		707
9	Polish (pl) Funkcja φ		627
10	Vietnamese (vi) Hàm phi Euler		395

The following table shows the language versions of the article with the highest Authors’ Interest.

#	Language	AI award	Relative AI
1	English (en) Euler's totient function		309
2	German (de) Eulersche Phi-Funktion		131
3	French (fr) Indicatrice d'Euler		120
4	Italian (it) Funzione φ di Eulero		86
5	Russian (ru) Функция Эйлера		78
6	Dutch (nl) Indicator (getaltheorie)		55
7	Spanish (es) Función φ de Euler		54
8	Japanese (ja) オイラーのφ関数		53
9	Polish (pl) Funkcja φ		51
10	Hungarian (hu) Euler-függvény		39

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

#	Language	AI award	Relative AI
1	English (en) Euler's totient function		2
2	Arabic (ar) مؤشر أويلر		1
3	Danish (da) Eulers totientfunktion		1
4	Basque (eu) Eulerren φ funtzioa		1
5	Italian (it) Funzione φ di Eulero		1
6	Polish (pl) Funkcja φ		1
7	Bulgarian (bg) Функция на Ойлер		0
8	Catalan (ca) Funció φ d'Euler		0
9	Czech (cs) Eulerova funkce		0
10	German (de) Eulersche Phi-Funktion		0

The following table shows the language versions of the article with the highest number of citations.

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information