87098904 has 24 divisors (see below), whose sum is σ = 235893060. Its totient is φ = 29032944.

The previous prime is 87098903. The next prime is 87098909. The reversal of 87098904 is 40989078.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 87098904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87098903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 604782 + ... + 604925.

Almost surely, 2^87098904 is an apocalyptic number.

It is an amenable number.

87098904 is an abundant number, since it is smaller than the sum of its proper divisors (148794156).

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

87098904 is a wasteful number, since it uses less digits than its factorization.

87098904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209719 (or 1209712 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 87098904 is about 9332.6793580408. The cubic root of 87098904 is about 443.2726098199.

The spelling of 87098904 in words is "eighty-seven million, ninety-eight thousand, nine hundred four".