57879620 has 24 divisors (see below), whose sum is σ = 122328024. Its totient is φ = 23003136.

The previous prime is 57879593. The next prime is 57879641. The reversal of 57879620 is 2697875.

It can be written as a sum of positive squares in 4 ways, for example, as 3444736 + 54434884 = 1856^2 + 7378^2 .

It is a super-2 number, since 2×57879620² = 6700100822688800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6077 + ... + 12356.

It is an arithmetic number, because the mean of its divisors is an integer number (5097001).

Almost surely, 2^57879620 is an apocalyptic number.

It is an amenable number.

57879620 is an abundant number, since it is smaller than the sum of its proper divisors (64448404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57879620 is a wasteful number, since it uses less digits than its factorization.

57879620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18599 (or 18597 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 57879620 is about 7607.8656665322. The cubic root of 57879620 is about 386.8196761991.

The spelling of 57879620 in words is "fifty-seven million, eight hundred seventy-nine thousand, six hundred twenty".