80979205 has 16 divisors (see below), whose sum is σ = 102363264. Its totient is φ = 61378240.

The previous prime is 80979179. The next prime is 80979221. The reversal of 80979205 is 50297908.

It is not a de Polignac number, because 80979205 - 2⁹ = 80978693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9015 + ... + 15595.

It is an arithmetic number, because the mean of its divisors is an integer number (6397704).

Almost surely, 2^80979205 is an apocalyptic number.

It is an amenable number.

80979205 is a deficient number, since it is larger than the sum of its proper divisors (21384059).

80979205 is a wasteful number, since it uses less digits than its factorization.

80979205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 80979205 is about 8998.8446480646. The cubic root of 80979205 is about 432.6378412814.

The spelling of 80979205 in words is "eighty million, nine hundred seventy-nine thousand, two hundred five".