8902921808 has 80 divisors (see below), whose sum is σ = 19888727040. Its totient is φ = 3818160000.

The previous prime is 8902921801. The next prime is 8902921813. The reversal of 8902921808 is 8081292098.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8902921801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834041 + ... + 844647.

It is an arithmetic number, because the mean of its divisors is an integer number (248609088).

Almost surely, 2^8902921808 is an apocalyptic number.

8902921808 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8902921808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9944363520).

8902921808 is an abundant number, since it is smaller than the sum of its proper divisors (10985805232).

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

8902921808 is a wasteful number, since it uses less digits than its factorization.

8902921808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10896 (or 10890 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 8902921808 is about 94355.2956012539. The cubic root of 8902921808 is about 2072.5778527234.

The spelling of 8902921808 in words is "eight billion, nine hundred two million, nine hundred twenty-one thousand, eight hundred eight".