7958879 has 4 divisors (see below), whose sum is σ = 8153040. Its totient is φ = 7764720.

The previous prime is 7958869. The next prime is 7958893. The reversal of 7958879 is 9788597.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7958879 - 2⁸ = 7958623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7958879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7958849) 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, 97019 + ... + 97100.

It is an arithmetic number, because the mean of its divisors is an integer number (2038260).

Almost surely, 2^7958879 is an apocalyptic number.

7958879 is a deficient number, since it is larger than the sum of its proper divisors (194161).

7958879 is a wasteful number, since it uses less digits than its factorization.

7958879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194160.

The product of its digits is 1270080, while the sum is 53.

The square root of 7958879 is about 2821.1485249806. The cubic root of 7958879 is about 199.6567361868.

The spelling of 7958879 in words is "seven million, nine hundred fifty-eight thousand, eight hundred seventy-nine".