8147972804 has 12 divisors (see below), whose sum is σ = 14606732028. Its totient is φ = 3974620800.

The previous prime is 8147972803. The next prime is 8147972809. The reversal of 8147972804 is 4082797418.

It can be written as a sum of positive squares in 2 ways, for example, as 3838050304 + 4309922500 = 61952^2 + 65650^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8147972803) 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, 24841217 + ... + 24841544.

It is an arithmetic number, because the mean of its divisors is an integer number (1217227669).

Almost surely, 2^8147972804 is an apocalyptic number.

It is an amenable number.

8147972804 is a deficient number, since it is larger than the sum of its proper divisors (6458759224).

8147972804 is a wasteful number, since it uses less digits than its factorization.

8147972804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49682806 (or 49682804 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 8147972804 is about 90266.1221278504. The cubic root of 8147972804 is about 2012.2558111397.

The spelling of 8147972804 in words is "eight billion, one hundred forty-seven million, nine hundred seventy-two thousand, eight hundred four".