56927728 has 80 divisors (see below), whose sum is σ = 131241600. Its totient is φ = 23581440.

The previous prime is 56927711. The next prime is 56927771. The reversal of 56927728 is 82772965.

56927728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317943 + ... + 318121.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^56927728 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 56927728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65620800).

56927728 is an abundant number, since it is smaller than the sum of its proper divisors (74313872).

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

56927728 is a wasteful number, since it uses less digits than its factorization.

56927728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 344 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 56927728 is about 7545.0465870000. The cubic root of 56927728 is about 384.6873900223.

The spelling of 56927728 in words is "fifty-six million, nine hundred twenty-seven thousand, seven hundred twenty-eight".