56731684 has 12 divisors (see below), whose sum is σ = 99339184. Its totient is φ = 28349064.

The previous prime is 56731681. The next prime is 56731699. The reversal of 56731684 is 48613765.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56731681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6367 + ... + 12409.

Almost surely, 2^56731684 is an apocalyptic number.

It is an amenable number.

56731684 is a deficient number, since it is larger than the sum of its proper divisors (42607500).

56731684 is a wasteful number, since it uses less digits than its factorization.

56731684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8394 (or 8392 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 56731684 is about 7532.0438129368. The cubic root of 56731684 is about 384.2452950254.

The spelling of 56731684 in words is "fifty-six million, seven hundred thirty-one thousand, six hundred eighty-four".