791979 has 16 divisors (see below), whose sum is σ = 1143072. Its totient is φ = 485888.

The previous prime is 791971. The next prime is 791993. The reversal of 791979 is 979197.

791979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 791979 - 2³ = 791971 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 791979.

It is not an unprimeable number, because it can be changed into a prime (791971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2557 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (71442).

2⁷⁹¹⁹⁷⁹ is an apocalyptic number.

791979 is a deficient number, since it is larger than the sum of its proper divisors (351093).

791979 is a wasteful number, since it uses less digits than its factorization.

791979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 35721, while the sum is 42.

The square root of 791979 is about 889.9320198757. The cubic root of 791979 is about 92.5204824377.

It can be divided in two parts, 791 and 979, that added together give a triangular number (1770 = T₅₉).

The spelling of 791979 in words is "seven hundred ninety-one thousand, nine hundred seventy-nine".