797572820 has 48 divisors (see below), whose sum is σ = 1852937856. Its totient is φ = 285936000.

The previous prime is 797572807. The next prime is 797572829. The reversal of 797572820 is 28275797.

It is a super-2 number, since 2×797572820² = 1272244806405504800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797572829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9911 + ... + 41150.

It is an arithmetic number, because the mean of its divisors is an integer number (38602872).

Almost surely, 2^797572820 is an apocalyptic number.

It is an amenable number.

797572820 is an abundant number, since it is smaller than the sum of its proper divisors (1055365036).

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

797572820 is a wasteful number, since it uses less digits than its factorization.

797572820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51152 (or 51150 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 797572820 is about 28241.3317674645. The cubic root of 797572820 is about 927.3779846903.

The spelling of 797572820 in words is "seven hundred ninety-seven million, five hundred seventy-two thousand, eight hundred twenty".