7989392 has 20 divisors (see below), whose sum is σ = 15543276. Its totient is φ = 3978240.

The previous prime is 7989343. The next prime is 7989407. The reversal of 7989392 is 2939897.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 3254416 = 2176^2 + 1804^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3608 + ... + 5384.

Almost surely, 2^7989392 is an apocalyptic number.

It is an amenable number.

7989392 is a deficient number, since it is larger than the sum of its proper divisors (7553884).

7989392 is a wasteful number, since it uses less digits than its factorization.

7989392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066 (or 2060 counting only the distinct ones).

The product of its digits is 244944, while the sum is 47.

The square root of 7989392 is about 2826.5512555055. The cubic root of 7989392 is about 199.9115608984.

The spelling of 7989392 in words is "seven million, nine hundred eighty-nine thousand, three hundred ninety-two".