57686904 has 80 divisors (see below), whose sum is σ = 176287320. Its totient is φ = 17478720.

The previous prime is 57686903. The next prime is 57686911. The reversal of 57686904 is 40968675.

It is a self number, because there is not a number n which added to its sum of digits gives 57686904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57686903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3082 + ... + 11174.

Almost surely, 2^57686904 is an apocalyptic number.

57686904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57686904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88143660).

57686904 is an abundant number, since it is smaller than the sum of its proper divisors (118600416).

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

57686904 is a wasteful number, since it uses less digits than its factorization.

57686904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122 (or 8109 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 57686904 is about 7595.1895302224. The cubic root of 57686904 is about 386.3898805266.

The spelling of 57686904 in words is "fifty-seven million, six hundred eighty-six thousand, nine hundred four".