8991912 has 32 divisors (see below), whose sum is σ = 23803200. Its totient is φ = 2820864.

The previous prime is 8991901. The next prime is 8991967. The reversal of 8991912 is 2191998.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10612 + ... + 11427.

It is an arithmetic number, because the mean of its divisors is an integer number (743850).

Almost surely, 2^8991912 is an apocalyptic number.

It is an amenable number.

8991912 is an abundant number, since it is smaller than the sum of its proper divisors (14811288).

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

8991912 is a wasteful number, since it uses less digits than its factorization.

8991912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22065 (or 22061 counting only the distinct ones).

The product of its digits is 11664, while the sum is 39.

The square root of 8991912 is about 2998.6516970132. The cubic root of 8991912 is about 207.9460535640.

The spelling of 8991912 in words is "eight million, nine hundred ninety-one thousand, nine hundred twelve".