623604672 has 42 divisors (see below), whose sum is σ = 1787451848. Its totient is φ = 207868032.

The previous prime is 623604637. The next prime is 623604679. The reversal of 623604672 is 276406326.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623604679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 540748 + ... + 541899.

Almost surely, 2^623604672 is an apocalyptic number.

It is an amenable number.

623604672 is an abundant number, since it is smaller than the sum of its proper divisors (1163847176).

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

623604672 is a wasteful number, since it uses less digits than its factorization.

623604672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082665 (or 1082652 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 623604672 is about 24972.0778470675. The cubic root of 623604672 is about 854.3512386429.

The spelling of 623604672 in words is "six hundred twenty-three million, six hundred four thousand, six hundred seventy-two".