791211980 has 24 divisors (see below), whose sum is σ = 1789356912. Its totient is φ = 292139712.

The previous prime is 791211913. The next prime is 791212013. The reversal of 791211980 is 89112197.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1521302 + ... + 1521821.

It is an arithmetic number, because the mean of its divisors is an integer number (74556538).

Almost surely, 2^791211980 is an apocalyptic number.

It is an amenable number.

791211980 is an abundant number, since it is smaller than the sum of its proper divisors (998144932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

791211980 is a wasteful number, since it uses less digits than its factorization.

791211980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043145 (or 3043143 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 791211980 is about 28128.4905389536. The cubic root of 791211980 is about 924.9060454851.

The spelling of 791211980 in words is "seven hundred ninety-one million, two hundred eleven thousand, nine hundred eighty".