56723628 has 96 divisors (see below), whose sum is σ = 153510336. Its totient is φ = 16146432.

The previous prime is 56723593. The next prime is 56723651. The reversal of 56723628 is 82632765.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193450 + ... + 193742.

It is an arithmetic number, because the mean of its divisors is an integer number (1599066).

Almost surely, 2^56723628 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 56723628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76755168).

56723628 is an abundant number, since it is smaller than the sum of its proper divisors (96786708).

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

56723628 is a wasteful number, since it uses less digits than its factorization.

56723628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 401 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 56723628 is about 7531.5090121436. The cubic root of 56723628 is about 384.2271063261.

The spelling of 56723628 in words is "fifty-six million, seven hundred twenty-three thousand, six hundred twenty-eight".