87165994 has 8 divisors (see below), whose sum is σ = 130794048. Its totient is φ = 43567980.

The previous prime is 87165989. The next prime is 87166007. The reversal of 87165994 is 49956178.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2319 + ... + 13405.

It is an arithmetic number, because the mean of its divisors is an integer number (16349256).

Almost surely, 2^87165994 is an apocalyptic number.

87165994 is a deficient number, since it is larger than the sum of its proper divisors (43628054).

87165994 is a wasteful number, since it uses less digits than its factorization.

87165994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020.

The product of its digits is 544320, while the sum is 49.

The square root of 87165994 is about 9336.2730251423. The cubic root of 87165994 is about 443.3863943626.

The spelling of 87165994 in words is "eighty-seven million, one hundred sixty-five thousand, nine hundred ninety-four".