87072868 has 12 divisors (see below), whose sum is σ = 152662972. Its totient is φ = 43454880.

The previous prime is 87072857. The next prime is 87072901. The reversal of 87072868 is 86827078.

It can be written as a sum of positive squares in 2 ways, for example, as 50808384 + 36264484 = 7128^2 + 6022^2 .

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, 17955 + ... + 22282.

Almost surely, 2^87072868 is an apocalyptic number.

It is an amenable number.

87072868 is a deficient number, since it is larger than the sum of its proper divisors (65590104).

87072868 is a wasteful number, since it uses less digits than its factorization.

87072868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40782 (or 40780 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 87072868 is about 9331.2843703319. The cubic root of 87072868 is about 443.2284370642.

The spelling of 87072868 in words is "eighty-seven million, seventy-two thousand, eight hundred sixty-eight".