87870679 has 16 divisors (see below), whose sum is σ = 96465600. Its totient is φ = 79554816.

The previous prime is 87870641. The next prime is 87870703. The reversal of 87870679 is 97607878.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 87870679 - 2²³ = 79482071 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 (87870179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199942 + ... + 200380.

It is an arithmetic number, because the mean of its divisors is an integer number (6029100).

Almost surely, 2^87870679 is an apocalyptic number.

87870679 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

87870679 is a deficient number, since it is larger than the sum of its proper divisors (8594921).

87870679 is a wasteful number, since it uses less digits than its factorization.

87870679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The square root of 87870679 is about 9373.9361529722. The cubic root of 87870679 is about 444.5780269551.

The spelling of 87870679 in words is "eighty-seven million, eight hundred seventy thousand, six hundred seventy-nine".