623994976 has 24 divisors (see below), whose sum is σ = 1340171784. Its totient is φ = 283633920.

The previous prime is 623994901. The next prime is 623994977. The reversal of 623994976 is 679499326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623994977) 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, 886005 + ... + 886708.

It is an arithmetic number, because the mean of its divisors is an integer number (55840491).

Almost surely, 2^623994976 is an apocalyptic number.

It is an amenable number.

623994976 is an abundant number, since it is smaller than the sum of its proper divisors (716176808).

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

623994976 is a wasteful number, since it uses less digits than its factorization.

623994976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772734 (or 1772726 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 55.

The square root of 623994976 is about 24979.8914329106. The cubic root of 623994976 is about 854.5294429748.

It can be divided in two parts, 623 and 994976, that added together give a palindrome (995599).

The spelling of 623994976 in words is "six hundred twenty-three million, nine hundred ninety-four thousand, nine hundred seventy-six".