656089628 has 24 divisors (see below), whose sum is σ = 1213255680. Its totient is φ = 309806640.

The previous prime is 656089601. The next prime is 656089631. The reversal of 656089628 is 826980656.

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 7 ways as a sum of consecutive naturals, for example, 37868 + ... + 52403.

It is an arithmetic number, because the mean of its divisors is an integer number (50552320).

Almost surely, 2^656089628 is an apocalyptic number.

It is an amenable number.

656089628 is a deficient number, since it is larger than the sum of its proper divisors (557166052).

656089628 is a wasteful number, since it uses less digits than its factorization.

656089628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90377 (or 90375 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 656089628 is about 25614.2465827125. The cubic root of 656089628 is about 868.9358672202.

The spelling of 656089628 in words is "six hundred fifty-six million, eighty-nine thousand, six hundred twenty-eight".