797915880 has 64 divisors (see below), whose sum is σ = 2659723200. Its totient is φ = 212777280.

The previous prime is 797915837. The next prime is 797915933. The reversal of 797915880 is 88519797.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 368326 + ... + 370485.

It is an arithmetic number, because the mean of its divisors is an integer number (41558175).

Almost surely, 2^797915880 is an apocalyptic number.

It is an amenable number.

797915880 is an abundant number, since it is smaller than the sum of its proper divisors (1861807320).

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

797915880 is a wasteful number, since it uses less digits than its factorization.

797915880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738831 (or 738821 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The square root of 797915880 is about 28247.4048365509. The cubic root of 797915880 is about 927.5109299962.

The spelling of 797915880 in words is "seven hundred ninety-seven million, nine hundred fifteen thousand, eight hundred eighty".