87564992 has 14 divisors (see below), whose sum is σ = 173761908. Its totient is φ = 43782464.

The previous prime is 87564959. The next prime is 87565031. The reversal of 87564992 is 29946578.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87564992.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684038 + ... + 684165.

Almost surely, 2^87564992 is an apocalyptic number.

It is an amenable number.

87564992 is a deficient number, since it is larger than the sum of its proper divisors (86196916).

87564992 is a wasteful number, since it uses less digits than its factorization.

87564992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368215 (or 1368205 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 87564992 is about 9357.6167906150. The cubic root of 87564992 is about 444.0618911099.

The spelling of 87564992 in words is "eighty-seven million, five hundred sixty-four thousand, nine hundred ninety-two".