87015879 has 6 divisors (see below), whose sum is σ = 125689616. Its totient is φ = 58010580.

The previous prime is 87015871. The next prime is 87015881. The reversal of 87015879 is 97851078.

It is not a de Polignac number, because 87015879 - 2³ = 87015871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87015871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4834207 + ... + 4834224.

Almost surely, 2^87015879 is an apocalyptic number.

87015879 is a deficient number, since it is larger than the sum of its proper divisors (38673737).

87015879 is a wasteful number, since it uses less digits than its factorization.

87015879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668437 (or 9668434 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 87015879 is about 9328.2302179996. The cubic root of 87015879 is about 443.1317186157.

The spelling of 87015879 in words is "eighty-seven million, fifteen thousand, eight hundred seventy-nine".