7990928 has 20 divisors (see below), whose sum is σ = 16890288. Its totient is φ = 3632160.

The previous prime is 7990919. The next prime is 7990933. The reversal of 7990928 is 8290997.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22526 + ... + 22877.

Almost surely, 2^7990928 is an apocalyptic number.

It is an amenable number.

7990928 is an abundant number, since it is smaller than the sum of its proper divisors (8899360).

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

7990928 is a wasteful number, since it uses less digits than its factorization.

7990928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45422 (or 45416 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 7990928 is about 2826.8229516544. The cubic root of 7990928 is about 199.9243714052.

The spelling of 7990928 in words is "seven million, nine hundred ninety thousand, nine hundred twenty-eight".