720564808 has 16 divisors (see below), whose sum is σ = 1351350000. Its totient is φ = 360204816.

The previous prime is 720564799. The next prime is 720564811. The reversal of 720564808 is 808465027.

720564808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55743 + ... + 67441.

It is an arithmetic number, because the mean of its divisors is an integer number (84459375).

Almost surely, 2^720564808 is an apocalyptic number.

It is an amenable number.

720564808 is a deficient number, since it is larger than the sum of its proper divisors (630785192).

720564808 is a wasteful number, since it uses less digits than its factorization.

720564808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19404 (or 19400 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 720564808 is about 26843.3382424765. The cubic root of 720564808 is about 896.5152522454.

The spelling of 720564808 in words is "seven hundred twenty million, five hundred sixty-four thousand, eight hundred eight".