87170912 has 24 divisors (see below), whose sum is σ = 173143656. Its totient is φ = 43197952.

The previous prime is 87170899. The next prime is 87170939. The reversal of 87170912 is 21907178.

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, 8438 + ... + 15669.

It is an arithmetic number, because the mean of its divisors is an integer number (7214319).

Almost surely, 2^87170912 is an apocalyptic number.

It is an amenable number.

87170912 is a deficient number, since it is larger than the sum of its proper divisors (85972744).

87170912 is a wasteful number, since it uses less digits than its factorization.

87170912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24230 (or 24222 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 87170912 is about 9336.5364027566. The cubic root of 87170912 is about 443.3947329864.

The spelling of 87170912 in words is "eighty-seven million, one hundred seventy thousand, nine hundred twelve".