87585560 has 16 divisors (see below), whose sum is σ = 197067600. Its totient is φ = 35034208.

The previous prime is 87585517. The next prime is 87585643. The reversal of 87585560 is 6558578.

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, 1094780 + ... + 1094859.

It is an arithmetic number, because the mean of its divisors is an integer number (12316725).

Almost surely, 2^87585560 is an apocalyptic number.

It is an amenable number.

87585560 is an abundant number, since it is smaller than the sum of its proper divisors (109482040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87585560 is a wasteful number, since it uses less digits than its factorization.

87585560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189650 (or 2189646 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 44.

The square root of 87585560 is about 9358.7157238587. The cubic root of 87585560 is about 444.0966567156.

The spelling of 87585560 in words is "eighty-seven million, five hundred eighty-five thousand, five hundred sixty".