623539264 has 28 divisors (see below), whose sum is σ = 1302461200. Its totient is φ = 295360128.

The previous prime is 623539261. The next prime is 623539297. The reversal of 623539264 is 462935326.

It is not an unprimeable number, because it can be changed into a prime (623539261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255174 + ... + 257605.

Almost surely, 2^623539264 is an apocalyptic number.

623539264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

623539264 is an abundant number, since it is smaller than the sum of its proper divisors (678921936).

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

623539264 is a wasteful number, since it uses less digits than its factorization.

623539264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512810 (or 512800 counting only the distinct ones).

The product of its digits is 233280, while the sum is 40.

The square root of 623539264 is about 24970.7681900257. The cubic root of 623539264 is about 854.3213674964.

It can be divided in two parts, 62353 and 9264, that added together give a palindrome (71617).

The spelling of 623539264 in words is "six hundred twenty-three million, five hundred thirty-nine thousand, two hundred sixty-four".