87715884 has 24 divisors (see below), whose sum is σ = 204927408. Its totient is φ = 29201920.

The previous prime is 87715883. The next prime is 87715891. The reversal of 87715884 is 48851778.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87715883) 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, 6424 + ... + 14720.

It is an arithmetic number, because the mean of its divisors is an integer number (8538642).

Almost surely, 2^87715884 is an apocalyptic number.

It is an amenable number.

87715884 is an abundant number, since it is smaller than the sum of its proper divisors (117211524).

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

87715884 is a wasteful number, since it uses less digits than its factorization.

87715884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9185 (or 9183 counting only the distinct ones).

The product of its digits is 501760, while the sum is 48.

The square root of 87715884 is about 9365.6758432053. The cubic root of 87715884 is about 444.3168138983.

It can be divided in two parts, 877 and 15884, that added together give a palindrome (16761).

The spelling of 87715884 in words is "eighty-seven million, seven hundred fifteen thousand, eight hundred eighty-four".