8197572808 has 16 divisors (see below), whose sum is σ = 15630966000. Its totient is φ = 4029315216.

The previous prime is 8197572707. The next prime is 8197572809. The reversal of 8197572808 is 8082757918.

It is a super-2 number, since 2×8197572808² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8197572809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8683398 + ... + 8684341.

It is an arithmetic number, because the mean of its divisors is an integer number (976935375).

Almost surely, 2^8197572808 is an apocalyptic number.

It is an amenable number.

8197572808 is a deficient number, since it is larger than the sum of its proper divisors (7433393192).

8197572808 is a wasteful number, since it uses less digits than its factorization.

8197572808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17367804 (or 17367800 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 55.

The square root of 8197572808 is about 90540.4484636563. The cubic root of 8197572808 is about 2016.3306919784.

The spelling of 8197572808 in words is "eight billion, one hundred ninety-seven million, five hundred seventy-two thousand, eight hundred eight".