656789364 has 96 divisors (see below), whose sum is σ = 2122982400. Its totient is φ = 170592480.

The previous prime is 656789363. The next prime is 656789377. The reversal of 656789364 is 463987656.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 656789364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656789363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31174 + ... + 47805.

It is an arithmetic number, because the mean of its divisors is an integer number (22114400).

Almost surely, 2^656789364 is an apocalyptic number.

It is an amenable number.

656789364 is an abundant number, since it is smaller than the sum of its proper divisors (1466193036).

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

656789364 is a wasteful number, since it uses less digits than its factorization.

656789364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79010 (or 79002 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 656789364 is about 25627.9020600595. The cubic root of 656789364 is about 869.2446714099.

The spelling of 656789364 in words is "six hundred fifty-six million, seven hundred eighty-nine thousand, three hundred sixty-four".