87398904 has 32 divisors (see below), whose sum is σ = 231351120. Its totient is φ = 27419136.

The previous prime is 87398903. The next prime is 87398911. The reversal of 87398904 is 40989378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87398903) 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, 106699 + ... + 107514.

Almost surely, 2^87398904 is an apocalyptic number.

It is an amenable number.

87398904 is an abundant number, since it is smaller than the sum of its proper divisors (143952216).

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

87398904 is a wasteful number, since it uses less digits than its factorization.

87398904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214239 (or 214235 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 87398904 is about 9348.7380966631. The cubic root of 87398904 is about 443.7809568035.

The spelling of 87398904 in words is "eighty-seven million, three hundred ninety-eight thousand, nine hundred four".