80979290 has 16 divisors (see below), whose sum is σ = 166586112. Its totient is φ = 27764304.

The previous prime is 80979289. The next prime is 80979293. The reversal of 80979290 is 9297908.

It is not an unprimeable number, because it can be changed into a prime (80979293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578354 + ... + 578493.

It is an arithmetic number, because the mean of its divisors is an integer number (10411632).

Almost surely, 2^80979290 is an apocalyptic number.

80979290 is an abundant number, since it is smaller than the sum of its proper divisors (85606822).

80979290 is a wasteful number, since it uses less digits than its factorization.

80979290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156861.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 80979290 is about 8998.8493708918. The cubic root of 80979290 is about 432.6379926545.

The spelling of 80979290 in words is "eighty million, nine hundred seventy-nine thousand, two hundred ninety".