8172808 has 24 divisors (see below), whose sum is σ = 17826750. Its totient is φ = 3502464.

The previous prime is 8172713. The next prime is 8172821. The reversal of 8172808 is 8082718.

8172808 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5207524 + 2965284 = 2282^2 + 1722^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10033 + ... + 10816.

Almost surely, 2^8172808 is an apocalyptic number.

It is an amenable number.

8172808 is an abundant number, since it is smaller than the sum of its proper divisors (9653942).

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

8172808 is a wasteful number, since it uses less digits than its factorization.

8172808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20869 (or 20858 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 8172808 is about 2858.8123408157. The cubic root of 8172808 is about 201.4298203759.

The spelling of 8172808 in words is "eight million, one hundred seventy-two thousand, eight hundred eight".