87016904 has 16 divisors (see below), whose sum is σ = 175707420. Its totient is φ = 40161600.

The previous prime is 87016877. The next prime is 87016957. The reversal of 87016904 is 40961078.

It can be written as a sum of positive squares in 2 ways, for example, as 66748900 + 20268004 = 8170^2 + 4502^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418247 + ... + 418454.

Almost surely, 2^87016904 is an apocalyptic number.

It is an amenable number.

87016904 is an abundant number, since it is smaller than the sum of its proper divisors (88690516).

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

87016904 is a wasteful number, since it uses less digits than its factorization.

87016904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836720 (or 836716 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 87016904 is about 9328.2851585916. The cubic root of 87016904 is about 443.1334585595.

The spelling of 87016904 in words is "eighty-seven million, sixteen thousand, nine hundred four".