989402904 has 96 divisors (see below), whose sum is σ = 3197084400. Its totient is φ = 282683520.

The previous prime is 989402899. The next prime is 989402917. The reversal of 989402904 is 409204989.

It is a self number, because there is not a number n which added to its sum of digits gives 989402904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36157 + ... + 57324.

Almost surely, 2^989402904 is an apocalyptic number.

It is an amenable number.

989402904 is an abundant number, since it is smaller than the sum of its proper divisors (2207681496).

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

989402904 is a wasteful number, since it uses less digits than its factorization.

989402904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93510 (or 93493 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 989402904 is about 31454.7755356798. The cubic root of 989402904 is about 996.4550830797.

The spelling of 989402904 in words is "nine hundred eighty-nine million, four hundred two thousand, nine hundred four".