87173995 has 16 divisors (see below), whose sum is σ = 112805280. Its totient is φ = 64454400.

The previous prime is 87173981. The next prime is 87174007. The reversal of 87173995 is 59937178.

It is not a de Polignac number, because 87173995 - 2⁹ = 87173483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7296 + ... + 15085.

It is an arithmetic number, because the mean of its divisors is an integer number (7050330).

Almost surely, 2^87173995 is an apocalyptic number.

87173995 is a deficient number, since it is larger than the sum of its proper divisors (25631285).

87173995 is a wasteful number, since it uses less digits than its factorization.

87173995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22446.

The product of its digits is 476280, while the sum is 49.

The square root of 87173995 is about 9336.7015053497. The cubic root of 87173995 is about 443.3999601499.

The spelling of 87173995 in words is "eighty-seven million, one hundred seventy-three thousand, nine hundred ninety-five".