623796564 has 24 divisors (see below), whose sum is σ = 1456032928. Its totient is φ = 207859680.

The previous prime is 623796541. The next prime is 623796577. The reversal of 623796564 is 465697326.

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, 35574 + ... + 50130.

Almost surely, 2^623796564 is an apocalyptic number.

It is an amenable number.

623796564 is an abundant number, since it is smaller than the sum of its proper divisors (832236364).

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

623796564 is a wasteful number, since it uses less digits than its factorization.

623796564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18135 (or 18133 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 48.

The square root of 623796564 is about 24975.9196827664. The cubic root of 623796564 is about 854.4388616528.

The spelling of 623796564 in words is "six hundred twenty-three million, seven hundred ninety-six thousand, five hundred sixty-four".