797819976 has 128 divisors (see below), whose sum is σ = 2273068800. Its totient is φ = 259200000.

The previous prime is 797819951. The next prime is 797820019. The reversal of 797819976 is 679918797.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1989376 + ... + 1989776.

It is an arithmetic number, because the mean of its divisors is an integer number (17758350).

Almost surely, 2^797819976 is an apocalyptic number.

797819976 is the 16308-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797819976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1136534400).

797819976 is an abundant number, since it is smaller than the sum of its proper divisors (1475248824).

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

797819976 is a wasteful number, since it uses less digits than its factorization.

797819976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 618 counting only the distinct ones).

The product of its digits is 12002256, while the sum is 63.

The square root of 797819976 is about 28245.7072136635. The cubic root of 797819976 is about 927.4737683628.

The spelling of 797819976 in words is "seven hundred ninety-seven million, eight hundred nineteen thousand, nine hundred seventy-six".