623626992 has 40 divisors (see below), whose sum is σ = 1790041680. Its totient is φ = 207875520.

The previous prime is 623626961. The next prime is 623627047. The reversal of 623626992 is 299626326.

It is a happy number.

623626992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721359 + ... + 722222.

It is an arithmetic number, because the mean of its divisors is an integer number (44751042).

Almost surely, 2^623626992 is an apocalyptic number.

It is an amenable number.

623626992 is an abundant number, since it is smaller than the sum of its proper divisors (1166414688).

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

623626992 is a wasteful number, since it uses less digits than its factorization.

623626992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443598 (or 1443586 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 623626992 is about 24972.5247422042. The cubic root of 623626992 is about 854.3614314745.

The spelling of 623626992 in words is "six hundred twenty-three million, six hundred twenty-six thousand, nine hundred ninety-two".