56687828 has 12 divisors (see below), whose sum is σ = 101314752. Its totient is φ = 27740760.

The previous prime is 56687791. The next prime is 56687863. The reversal of 56687828 is 82878665.

It is a congruent number.

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, 150578 + ... + 150953.

It is an arithmetic number, because the mean of its divisors is an integer number (8442896).

Almost surely, 2^56687828 is an apocalyptic number.

It is an amenable number.

56687828 is a deficient number, since it is larger than the sum of its proper divisors (44626924).

56687828 is a wasteful number, since it uses less digits than its factorization.

56687828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301582 (or 301580 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 56687828 is about 7529.1319552788. The cubic root of 56687828 is about 384.1462568594.

The spelling of 56687828 in words is "fifty-six million, six hundred eighty-seven thousand, eight hundred twenty-eight".