8220973797 has 32 divisors (see below), whose sum is σ = 12546019200. Its totient is φ = 5316482304.

The previous prime is 8220973777. The next prime is 8220973811. The reversal of 8220973797 is 7973790228.

It is a de Polignac number, because none of the positive numbers 2^k-8220973797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220973727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324454 + ... + 348872.

It is an arithmetic number, because the mean of its divisors is an integer number (392063100).

Almost surely, 2^8220973797 is an apocalyptic number.

It is an amenable number.

8220973797 is a deficient number, since it is larger than the sum of its proper divisors (4325045403).

8220973797 is a wasteful number, since it uses less digits than its factorization.

8220973797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24802 (or 24796 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The square root of 8220973797 is about 90669.5858433246. The cubic root of 8220973797 is about 2018.2474912904.

The spelling of 8220973797 in words is "eight billion, two hundred twenty million, nine hundred seventy-three thousand, seven hundred ninety-seven".