623474556 has 12 divisors (see below), whose sum is σ = 1454773992. Its totient is φ = 207824848.

The previous prime is 623474549. The next prime is 623474561. The reversal of 623474556 is 655474326.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25978095 + ... + 25978118.

It is an arithmetic number, because the mean of its divisors is an integer number (121231166).

Almost surely, 2^623474556 is an apocalyptic number.

It is an amenable number.

623474556 is an abundant number, since it is smaller than the sum of its proper divisors (831299436).

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

623474556 is a wasteful number, since it uses less digits than its factorization.

623474556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51956220 (or 51956218 counting only the distinct ones).

The product of its digits is 604800, while the sum is 42.

The square root of 623474556 is about 24969.4724814122. The cubic root of 623474556 is about 854.2918139769.

The spelling of 623474556 in words is "six hundred twenty-three million, four hundred seventy-four thousand, five hundred fifty-six".