87189264 has 40 divisors (see below), whose sum is σ = 250266720. Its totient is φ = 29062944.

The previous prime is 87189257. The next prime is 87189269. The reversal of 87189264 is 46298178.

It is not an unprimeable number, because it can be changed into a prime (87189269) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 100482 + ... + 101345.

It is an arithmetic number, because the mean of its divisors is an integer number (6256668).

Almost surely, 2^87189264 is an apocalyptic number.

It is an amenable number.

87189264 is an abundant number, since it is smaller than the sum of its proper divisors (163077456).

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

87189264 is a wasteful number, since it uses less digits than its factorization.

87189264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201844 (or 201832 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 87189264 is about 9337.5191566069. The cubic root of 87189264 is about 443.4258466112.

The spelling of 87189264 in words is "eighty-seven million, one hundred eighty-nine thousand, two hundred sixty-four".