7991793 has 12 divisors (see below), whose sum is σ = 11733748. Its totient is φ = 5240160.

The previous prime is 7991779. The next prime is 7991803. The reversal of 7991793 is 3971997.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 7306209 = 828^2 + 2703^2 .

It is not a de Polignac number, because 7991793 - 2⁴ = 7991777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7991713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6730 + ... + 7827.

Almost surely, 2^7991793 is an apocalyptic number.

It is an amenable number.

7991793 is a deficient number, since it is larger than the sum of its proper divisors (3741955).

7991793 is a wasteful number, since it uses less digits than its factorization.

7991793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14624 (or 14621 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 7991793 is about 2826.9759461304. The cubic root of 7991793 is about 199.9315849329.

The spelling of 7991793 in words is "seven million, nine hundred ninety-one thousand, seven hundred ninety-three".