87231264 has 48 divisors (see below), whose sum is σ = 232878240. Its totient is φ = 28582400.

The previous prime is 87231259. The next prime is 87231293. The reversal of 87231264 is 46213278.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2037 + ... + 13364.

It is an arithmetic number, because the mean of its divisors is an integer number (4851630).

Almost surely, 2^87231264 is an apocalyptic number.

It is an amenable number.

87231264 is an abundant number, since it is smaller than the sum of its proper divisors (145646976).

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

87231264 is a wasteful number, since it uses less digits than its factorization.

87231264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15473 (or 15465 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 87231264 is about 9339.7678772012. The cubic root of 87231264 is about 443.4970361708.

The spelling of 87231264 in words is "eighty-seven million, two hundred thirty-one thousand, two hundred sixty-four".