87313524 has 12 divisors (see below), whose sum is σ = 203731584. Its totient is φ = 29104504.

The previous prime is 87313517. The next prime is 87313537. The reversal of 87313524 is 42531378.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638052 + ... + 3638075.

It is an arithmetic number, because the mean of its divisors is an integer number (16977632).

Almost surely, 2^87313524 is an apocalyptic number.

It is an amenable number.

87313524 is an abundant number, since it is smaller than the sum of its proper divisors (116418060).

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

87313524 is a wasteful number, since it uses less digits than its factorization.

87313524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276134 (or 7276132 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 87313524 is about 9344.1705891962. The cubic root of 87313524 is about 443.6363998304.

The spelling of 87313524 in words is "eighty-seven million, three hundred thirteen thousand, five hundred twenty-four".