57638685 has 64 divisors (see below), whose sum is σ = 107089920. Its totient is φ = 26231040.

The previous prime is 57638677. The next prime is 57638729. The reversal of 57638685 is 58683675.

It is not a de Polignac number, because 57638685 - 2³ = 57638677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 173970 + ... + 174300.

It is an arithmetic number, because the mean of its divisors is an integer number (1673280).

Almost surely, 2^57638685 is an apocalyptic number.

It is an amenable number.

57638685 is a deficient number, since it is larger than the sum of its proper divisors (49451235).

57638685 is a wasteful number, since it uses less digits than its factorization.

57638685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418.

The product of its digits is 1209600, while the sum is 48.

The square root of 57638685 is about 7592.0145547806. The cubic root of 57638685 is about 386.2821927274.

The spelling of 57638685 in words is "fifty-seven million, six hundred thirty-eight thousand, six hundred eighty-five".