87574664 has 16 divisors (see below), whose sum is σ = 169865100. Its totient is φ = 42277312.

The previous prime is 87574657. The next prime is 87574673. The reversal of 87574664 is 46647578.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87572164 + 2500 = 9358^2 + 50^2 .

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, 188507 + ... + 188970.

Almost surely, 2^87574664 is an apocalyptic number.

It is an amenable number.

87574664 is a deficient number, since it is larger than the sum of its proper divisors (82290436).

87574664 is a wasteful number, since it uses less digits than its factorization.

87574664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377512 (or 377508 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 87574664 is about 9358.1335745970. The cubic root of 87574664 is about 444.0782401416.

The spelling of 87574664 in words is "eighty-seven million, five hundred seventy-four thousand, six hundred sixty-four".