57640684 has 12 divisors (see below), whose sum is σ = 100929304. Its totient is φ = 28803744.

The previous prime is 57640673. The next prime is 57640721. The reversal of 57640684 is 48604675.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6979 + ... + 12805.

Almost surely, 2^57640684 is an apocalyptic number.

It is an amenable number.

57640684 is a deficient number, since it is larger than the sum of its proper divisors (43288620).

57640684 is a wasteful number, since it uses less digits than its factorization.

57640684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8304 (or 8302 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 57640684 is about 7592.1462051254. The cubic root of 57640684 is about 386.2866582998.

The spelling of 57640684 in words is "fifty-seven million, six hundred forty thousand, six hundred eighty-four".