56908728 has 96 divisors (see below), whose sum is σ = 160392960. Its totient is φ = 18216000.

The previous prime is 56908727. The next prime is 56908771. The reversal of 56908728 is 82780965.

56908728 is a `hidden beast` number, since 569 + 0 + 87 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56908723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226603 + ... + 226853.

It is an arithmetic number, because the mean of its divisors is an integer number (1670760).

Almost surely, 2^56908728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56908728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80196480).

56908728 is an abundant number, since it is smaller than the sum of its proper divisors (103484232).

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

56908728 is a wasteful number, since it uses less digits than its factorization.

56908728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 56908728 is about 7543.7873777036. The cubic root of 56908728 is about 384.6445879528.

The spelling of 56908728 in words is "fifty-six million, nine hundred eight thousand, seven hundred twenty-eight".