8172320396 has 12 divisors (see below), whose sum is σ = 14334141360. Its totient is φ = 4076851440.

The previous prime is 8172320383. The next prime is 8172320399. The reversal of 8172320396 is 6930232718.

It is not an unprimeable number, because it can be changed into a prime (8172320399) 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 3 ways as a sum of consecutive naturals, for example, 2325215 + ... + 2328726.

It is an arithmetic number, because the mean of its divisors is an integer number (1194511780).

Almost surely, 2^8172320396 is an apocalyptic number.

It is an amenable number.

8172320396 is a deficient number, since it is larger than the sum of its proper divisors (6161820964).

8172320396 is a wasteful number, since it uses less digits than its factorization.

8172320396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654384 (or 4654382 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 8172320396 is about 90400.8871416647. The cubic root of 8172320396 is about 2014.2581441128.

The spelling of 8172320396 in words is "eight billion, one hundred seventy-two million, three hundred twenty thousand, three hundred ninety-six".