623706432 has 56 divisors (see below), whose sum is σ = 1690493952. Its totient is φ = 202828800.

The previous prime is 623706431. The next prime is 623706437. The reversal of 623706432 is 234607326.

It is a junction number, because it is equal to n+sod(n) for n = 623706393 and 623706402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623706431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31744 + ... + 47487.

It is an arithmetic number, because the mean of its divisors is an integer number (30187392).

Almost surely, 2^623706432 is an apocalyptic number.

It is an amenable number.

623706432 is an abundant number, since it is smaller than the sum of its proper divisors (1066787520).

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

623706432 is a wasteful number, since it uses less digits than its factorization.

623706432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79287 (or 79277 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 623706432 is about 24974.1152395836. The cubic root of 623706432 is about 854.3977072138.

The spelling of 623706432 in words is "six hundred twenty-three million, seven hundred six thousand, four hundred thirty-two".