87889504 has 24 divisors (see below), whose sum is σ = 177711408. Its totient is φ = 42756480.

The previous prime is 87889499. The next prime is 87889511. The reversal of 87889504 is 40598878.

It is a congruent number.

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, 35932 + ... + 38299.

It is an arithmetic number, because the mean of its divisors is an integer number (7404642).

Almost surely, 2^87889504 is an apocalyptic number.

It is an amenable number.

87889504 is an abundant number, since it is smaller than the sum of its proper divisors (89821904).

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

87889504 is a wasteful number, since it uses less digits than its factorization.

87889504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74278 (or 74270 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 87889504 is about 9374.9402131427. The cubic root of 87889504 is about 444.6097727884.

The spelling of 87889504 in words is "eighty-seven million, eight hundred eighty-nine thousand, five hundred four".