623948904 has 96 divisors (see below), whose sum is σ = 1836307200. Its totient is φ = 190667520.

The previous prime is 623948903. The next prime is 623948921. The reversal of 623948904 is 409849326.

It is a self number, because there is not a number n which added to its sum of digits gives 623948904.

It is not an unprimeable number, because it can be changed into a prime (623948903) 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, 35052 + ... + 49764.

It is an arithmetic number, because the mean of its divisors is an integer number (19128200).

Almost surely, 2^623948904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623948904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (918153600).

623948904 is an abundant number, since it is smaller than the sum of its proper divisors (1212358296).

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

623948904 is a wasteful number, since it uses less digits than its factorization.

623948904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14775 (or 14768 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 623948904 is about 24978.9692341377. The cubic root of 623948904 is about 854.5084113687.

The spelling of 623948904 in words is "six hundred twenty-three million, nine hundred forty-eight thousand, nine hundred four".