7992913 has 4 divisors (see below), whose sum is σ = 8001460. Its totient is φ = 7984368.

The previous prime is 7992889. The next prime is 7992923. The reversal of 7992913 is 3192997.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6066369 + 1926544 = 2463^2 + 1388^2 .

It is a cyclic number.

It is not a de Polignac number, because 7992913 - 2⁹ = 7992401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7992923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2670 + ... + 4807.

It is an arithmetic number, because the mean of its divisors is an integer number (2000365).

Almost surely, 2^7992913 is an apocalyptic number.

It is an amenable number.

7992913 is a deficient number, since it is larger than the sum of its proper divisors (8547).

7992913 is a wasteful number, since it uses less digits than its factorization.

7992913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8546.

The product of its digits is 30618, while the sum is 40.

The square root of 7992913 is about 2827.1740307240. The cubic root of 7992913 is about 199.9409242186.

The spelling of 7992913 in words is "seven million, nine hundred ninety-two thousand, nine hundred thirteen".