87568964 has 24 divisors (see below), whose sum is σ = 175381248. Its totient is φ = 37477440.

The previous prime is 87568961. The next prime is 87568997. The reversal of 87568964 is 46986578.

It is not an unprimeable number, because it can be changed into a prime (87568961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23792 + ... + 27224.

It is an arithmetic number, because the mean of its divisors is an integer number (7307552).

Almost surely, 2^87568964 is an apocalyptic number.

It is an amenable number.

87568964 is an abundant number, since it is smaller than the sum of its proper divisors (87812284).

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

87568964 is a wasteful number, since it uses less digits than its factorization.

87568964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4355 (or 4353 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 87568964 is about 9357.8290217336. The cubic root of 87568964 is about 444.0686053120.

The spelling of 87568964 in words is "eighty-seven million, five hundred sixty-eight thousand, nine hundred sixty-four".