8921944 has 32 divisors (see below), whose sum is σ = 17856000. Its totient is φ = 4167072.

The previous prime is 8921917. The next prime is 8921951. The reversal of 8921944 is 4491298.

It is a happy number.

It is a congruent 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, 11637 + ... + 12379.

It is an arithmetic number, because the mean of its divisors is an integer number (558000).

Almost surely, 2^8921944 is an apocalyptic number.

It is an amenable number.

8921944 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

8921944 is a wasteful number, since it uses less digits than its factorization.

8921944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 843 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 8921944 is about 2986.9623365553. The cubic root of 8921944 is about 207.4052908861.

The spelling of 8921944 in words is "eight million, nine hundred twenty-one thousand, nine hundred forty-four".