87202864 has 20 divisors (see below), whose sum is σ = 193092304. Its totient is φ = 37372608.

The previous prime is 87202849. The next prime is 87202873. The reversal of 87202864 is 46820278.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389187 + ... + 389410.

Almost surely, 2^87202864 is an apocalyptic number.

It is an amenable number.

87202864 is an abundant number, since it is smaller than the sum of its proper divisors (105889440).

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

87202864 is a wasteful number, since it uses less digits than its factorization.

87202864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778612 (or 778606 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 87202864 is about 9338.2473730353. The cubic root of 87202864 is about 443.4489009710.

The spelling of 87202864 in words is "eighty-seven million, two hundred two thousand, eight hundred sixty-four".