791279 has 4 divisors (see below), whose sum is σ = 793200. Its totient is φ = 789360.

The previous prime is 791261. The next prime is 791291. The reversal of 791279 is 972197.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791279 is a prime.

It is a super-2 number, since 2×791279² = 1252244911682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791209) 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, 62 + ... + 1259.

It is an arithmetic number, because the mean of its divisors is an integer number (198300).

2⁷⁹¹²⁷⁹ is an apocalyptic number.

791279 is a deficient number, since it is larger than the sum of its proper divisors (1921).

791279 is a wasteful number, since it uses less digits than its factorization.

791279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920.

The product of its digits is 7938, while the sum is 35.

The square root of 791279 is about 889.5386444669. The cubic root of 791279 is about 92.4932159622.

The spelling of 791279 in words is "seven hundred ninety-one thousand, two hundred seventy-nine".