80079979 has 16 divisors (see below), whose sum is σ = 98739648. Its totient is φ = 63378432.

The previous prime is 80079973. The next prime is 80079983. The reversal of 80079979 is 97997008.

It is a cyclic number.

It is not a de Polignac number, because 80079979 - 2⁵ = 80079947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80079973) 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, 42 + ... + 12655.

It is an arithmetic number, because the mean of its divisors is an integer number (6171228).

Almost surely, 2^80079979 is an apocalyptic number.

80079979 is a deficient number, since it is larger than the sum of its proper divisors (18659669).

80079979 is a wasteful number, since it uses less digits than its factorization.

80079979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12774.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 80079979 is about 8948.7417551296. The cubic root of 80079979 is about 431.0304814585.

The spelling of 80079979 in words is "eighty million, seventy-nine thousand, nine hundred seventy-nine".