87660570 has 32 divisors (see below), whose sum is σ = 210869568. Its totient is φ = 23322368.

The previous prime is 87660563. The next prime is 87660571. The reversal of 87660570 is 7506678.

It is not an unprimeable number, because it can be changed into a prime (87660571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10882 + ... + 17138.

It is an arithmetic number, because the mean of its divisors is an integer number (6589674).

Almost surely, 2^87660570 is an apocalyptic number.

87660570 is an abundant number, since it is smaller than the sum of its proper divisors (123208998).

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

87660570 is a wasteful number, since it uses less digits than its factorization.

87660570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 87660570 is about 9362.7223605103. The cubic root of 87660570 is about 444.2233982513.

The spelling of 87660570 in words is "eighty-seven million, six hundred sixty thousand, five hundred seventy".