79889408 has 22 divisors (see below), whose sum is σ = 159702846. Its totient is φ = 39944192.

The previous prime is 79889377. The next prime is 79889417. The reversal of 79889408 is 80498897.

It can be written as a sum of positive squares in only one way, i.e., 40551424 + 39337984 = 6368^2 + 6272^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79889408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37985 + ... + 40032.

Almost surely, 2^79889408 is an apocalyptic number.

It is an amenable number.

79889408 is a deficient number, since it is larger than the sum of its proper divisors (79813438).

79889408 is an equidigital number, since it uses as much as digits as its factorization.

79889408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78037 (or 78019 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 79889408 is about 8938.0874911806. The cubic root of 79889408 is about 430.6882937419.

The spelling of 79889408 in words is "seventy-nine million, eight hundred eighty-nine thousand, four hundred eight".