87882865 has 16 divisors (see below), whose sum is σ = 120677760. Its totient is φ = 60186240.

The previous prime is 87882859. The next prime is 87882887. The reversal of 87882865 is 56828878.

It is not a de Polignac number, because 87882865 - 2²⁵ = 54328433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50205 + ... + 51925.

It is an arithmetic number, because the mean of its divisors is an integer number (7542360).

Almost surely, 2^87882865 is an apocalyptic number.

It is an amenable number.

87882865 is a deficient number, since it is larger than the sum of its proper divisors (32794895).

87882865 is a wasteful number, since it uses less digits than its factorization.

87882865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192.

The product of its digits is 1720320, while the sum is 52.

The square root of 87882865 is about 9374.5861241977. The cubic root of 87882865 is about 444.5985775244.

The spelling of 87882865 in words is "eighty-seven million, eight hundred eighty-two thousand, eight hundred sixty-five".