57279 has 8 divisors (see below), whose sum is σ = 77872. Its totient is φ = 37440.

The previous prime is 57271. The next prime is 57283. The reversal of 57279 is 97275.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57279 - 2³ = 57271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27 + ... + 339.

It is an arithmetic number, because the mean of its divisors is an integer number (9734).

2⁵⁷²⁷⁹ is an apocalyptic number.

57279 is a deficient number, since it is larger than the sum of its proper divisors (20593).

57279 is a wasteful number, since it uses less digits than its factorization.

57279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its digits is 4410, while the sum is 30.

The square root of 57279 is about 239.3303156727. The cubic root of 57279 is about 38.5477004757.

The spelling of 57279 in words is "fifty-seven thousand, two hundred seventy-nine".