797925720 has 128 divisors (see below), whose sum is σ = 2543659200. Its totient is φ = 199858176.

The previous prime is 797925707. The next prime is 797925743. The reversal of 797925720 is 27529797.

It is a self number, because there is not a number n which added to its sum of digits gives 797925720.

It is a congruent number.

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, 125662 + ... + 131858.

Almost surely, 2^797925720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797925720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271829600).

797925720 is an abundant number, since it is smaller than the sum of its proper divisors (1745733480).

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

797925720 is a wasteful number, since it uses less digits than its factorization.

797925720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277 (or 6273 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 48.

The square root of 797925720 is about 28247.5790113064. The cubic root of 797925720 is about 927.5147427081.

The spelling of 797925720 in words is "seven hundred ninety-seven million, nine hundred twenty-five thousand, seven hundred twenty".