87042712 has 16 divisors (see below), whose sum is σ = 165040200. Its totient is φ = 43032000.

The previous prime is 87042689. The next prime is 87042721. The reversal of 87042712 is 21724078.

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, 60414 + ... + 61837.

Almost surely, 2^87042712 is an apocalyptic number.

It is an amenable number.

87042712 is a deficient number, since it is larger than the sum of its proper divisors (77997488).

87042712 is a wasteful number, since it uses less digits than its factorization.

87042712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122346 (or 122342 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 87042712 is about 9329.6683756712. The cubic root of 87042712 is about 443.1772632968.

The spelling of 87042712 in words is "eighty-seven million, forty-two thousand, seven hundred twelve".