623520964 has 12 divisors (see below), whose sum is σ = 1190358288. Its totient is φ = 283418600.

The previous prime is 623520943. The next prime is 623520973. The reversal of 623520964 is 469025326.

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, 7085422 + ... + 7085509.

It is an arithmetic number, because the mean of its divisors is an integer number (99196524).

Almost surely, 2^623520964 is an apocalyptic number.

It is an amenable number.

623520964 is a deficient number, since it is larger than the sum of its proper divisors (566837324).

623520964 is a wasteful number, since it uses less digits than its factorization.

623520964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14170946 (or 14170944 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 623520964 is about 24970.4017588825. The cubic root of 623520964 is about 854.3130097046.

The spelling of 623520964 in words is "six hundred twenty-three million, five hundred twenty thousand, nine hundred sixty-four".