87093872 has 20 divisors (see below), whose sum is σ = 177626280. Its totient is φ = 41254848.

The previous prime is 87093857. The next prime is 87093883. The reversal of 87093872 is 27839078.

It is a happy number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 142943 + ... + 143550.

It is an arithmetic number, because the mean of its divisors is an integer number (8881314).

Almost surely, 2^87093872 is an apocalyptic number.

It is an amenable number.

87093872 is an abundant number, since it is smaller than the sum of its proper divisors (90532408).

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

87093872 is a wasteful number, since it uses less digits than its factorization.

87093872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286520 (or 286514 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 87093872 is about 9332.4097638284. The cubic root of 87093872 is about 443.2640731999.

The spelling of 87093872 in words is "eighty-seven million, ninety-three thousand, eight hundred seventy-two".