8909904 has 80 divisors (see below), whose sum is σ = 24909120. Its totient is φ = 2734080.

The previous prime is 8909903. The next prime is 8909909. The reversal of 8909904 is 4099098.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8909903) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 49687 + ... + 49865.

It is an arithmetic number, because the mean of its divisors is an integer number (311364).

Almost surely, 2^8909904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8909904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12454560).

8909904 is an abundant number, since it is smaller than the sum of its proper divisors (15999216).

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

8909904 is a wasteful number, since it uses less digits than its factorization.

8909904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 8909904 is about 2984.9462306715. The cubic root of 8909904 is about 207.3119523403.

The spelling of 8909904 in words is "eight million, nine hundred nine thousand, nine hundred four".