7987792 has 20 divisors (see below), whose sum is σ = 15602176. Its totient is φ = 3961440.

The previous prime is 7987781. The next prime is 7987799. The reversal of 7987792 is 2977897.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987799) by changing a digit.

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, 67 + ... + 3997.

Almost surely, 2^7987792 is an apocalyptic number.

It is an amenable number.

7987792 is a deficient number, since it is larger than the sum of its proper divisors (7614384).

7987792 is a wasteful number, since it uses less digits than its factorization.

7987792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066 (or 4060 counting only the distinct ones).

The product of its digits is 444528, while the sum is 49.

The square root of 7987792 is about 2826.2682109099. The cubic root of 7987792 is about 199.8982148744.

The spelling of 7987792 in words is "seven million, nine hundred eighty-seven thousand, seven hundred ninety-two".