87933872 has 20 divisors (see below), whose sum is σ = 183477840. Its totient is φ = 40584768.

The previous prime is 87933863. The next prime is 87933893. The reversal of 87933872 is 27833978.

It is a happy number.

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, 211172 + ... + 211587.

It is an arithmetic number, because the mean of its divisors is an integer number (9173892).

Almost surely, 2^87933872 is an apocalyptic number.

It is an amenable number.

87933872 is an abundant number, since it is smaller than the sum of its proper divisors (95543968).

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

87933872 is a wasteful number, since it uses less digits than its factorization.

87933872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422780 (or 422774 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 87933872 is about 9377.3062230046. The cubic root of 87933872 is about 444.6845755313.

The spelling of 87933872 in words is "eighty-seven million, nine hundred thirty-three thousand, eight hundred seventy-two".