87315912 has 48 divisors (see below), whose sum is σ = 246767040. Its totient is φ = 27839328.

The previous prime is 87315911. The next prime is 87315913. The reversal of 87315912 is 21951378.

It is an interprime number because it is at equal distance from previous prime (87315911) and next prime (87315913).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (87315911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24708 + ... + 28019.

It is an arithmetic number, because the mean of its divisors is an integer number (5140980).

Almost surely, 2^87315912 is an apocalyptic number.

It is an amenable number.

87315912 is an abundant number, since it is smaller than the sum of its proper divisors (159451128).

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

87315912 is a wasteful number, since it uses less digits than its factorization.

87315912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52762 (or 52755 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 87315912 is about 9344.2983685240. The cubic root of 87315912 is about 443.6404442366.

The spelling of 87315912 in words is "eighty-seven million, three hundred fifteen thousand, nine hundred twelve".