87979883 has 4 divisors (see below), whose sum is σ = 88216128. Its totient is φ = 87743640.

The previous prime is 87979847. The next prime is 87979897. The reversal of 87979883 is 38897978.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87979883 - 2⁸ = 87979627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87979813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117563 + ... + 118308.

It is an arithmetic number, because the mean of its divisors is an integer number (22054032).

Almost surely, 2^87979883 is an apocalyptic number.

87979883 is a deficient number, since it is larger than the sum of its proper divisors (236245).

87979883 is a wasteful number, since it uses less digits than its factorization.

87979883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236244.

The product of its digits is 6096384, while the sum is 59.

The square root of 87979883 is about 9379.7592186580. The cubic root of 87979883 is about 444.7621217373.

The spelling of 87979883 in words is "eighty-seven million, nine hundred seventy-nine thousand, eight hundred eighty-three".