8172992208 has 40 divisors (see below), whose sum is σ = 21193875648. Its totient is φ = 2713967872.

The previous prime is 8172992207. The next prime is 8172992221. The reversal of 8172992208 is 8022992718.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8172992203) 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 7 ways as a sum of consecutive naturals, for example, 311085 + ... + 336332.

Almost surely, 2^8172992208 is an apocalyptic number.

It is an amenable number.

8172992208 is an abundant number, since it is smaller than the sum of its proper divisors (13020883440).

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

8172992208 is a wasteful number, since it uses less digits than its factorization.

8172992208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647691 (or 647685 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 8172992208 is about 90404.6028031759. The cubic root of 8172992208 is about 2014.3133371567.

The spelling of 8172992208 in words is "eight billion, one hundred seventy-two million, nine hundred ninety-two thousand, two hundred eight".