623994975 has 24 divisors (see below), whose sum is σ = 1146303120. Its totient is φ = 332796960.

The previous prime is 623994901. The next prime is 623994977. The reversal of 623994975 is 579499326.

623994975 is a `hidden beast` number, since 62 + 3 + 99 + 497 + 5 = 666.

623994975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 623994975 - 2⁸ = 623994719 is a prime.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461544 + ... + 462893.

It is an arithmetic number, because the mean of its divisors is an integer number (47762630).

Almost surely, 2^623994975 is an apocalyptic number.

623994975 is a deficient number, since it is larger than the sum of its proper divisors (522308145).

623994975 is a wasteful number, since it uses less digits than its factorization.

623994975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924456 (or 924445 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 623994975 is about 24979.8914128945. The cubic root of 623994975 is about 854.5294425183.

The spelling of 623994975 in words is "six hundred twenty-three million, nine hundred ninety-four thousand, nine hundred seventy-five".