8921992 has 16 divisors (see below), whose sum is σ = 16819200. Its totient is φ = 4436880.

The previous prime is 8921989. The next prime is 8922013. The reversal of 8921992 is 2991298.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392 + ... + 4447.

It is an arithmetic number, because the mean of its divisors is an integer number (1051200).

Almost surely, 2^8921992 is an apocalyptic number.

It is an amenable number.

8921992 is a deficient number, since it is larger than the sum of its proper divisors (7897208).

8921992 is a wasteful number, since it uses less digits than its factorization.

8921992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 6032 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The square root of 8921992 is about 2986.9703714634. The cubic root of 8921992 is about 207.4056628318.

The spelling of 8921992 in words is "eight million, nine hundred twenty-one thousand, nine hundred ninety-two".