87040524 has 24 divisors (see below), whose sum is σ = 203944048. Its totient is φ = 28892160.

The previous prime is 87040507. The next prime is 87040531. The reversal of 87040524 is 42504078.

It is a junction number, because it is equal to n+sod(n) for n = 87040491 and 87040500.

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, 12157 + ... + 17940.

Almost surely, 2^87040524 is an apocalyptic number.

It is an amenable number.

87040524 is an abundant number, since it is smaller than the sum of its proper divisors (116903524).

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

87040524 is a wasteful number, since it uses less digits than its factorization.

87040524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30345 (or 30343 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 87040524 is about 9329.5511146035. The cubic root of 87040524 is about 443.1735498710.

The spelling of 87040524 in words is "eighty-seven million, forty thousand, five hundred twenty-four".