79719 has 4 divisors (see below), whose sum is σ = 106296. Its totient is φ = 53144.

The previous prime is 79699. The next prime is 79757. The reversal of 79719 is 91797.

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 79719 - 2⁵ = 79687 is a prime.

It is a super-2 number, since 2×79719² = 12710237922, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 79719.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 79719.

It is not an unprimeable number, because it can be changed into a prime (79769) 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, 13284 + ... + 13289.

It is an arithmetic number, because the mean of its divisors is an integer number (26574).

2⁷⁹⁷¹⁹ is an apocalyptic number.

79719 is a deficient number, since it is larger than the sum of its proper divisors (26577).

79719 is a wasteful number, since it uses less digits than its factorization.

79719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26576.

The product of its digits is 3969, while the sum is 33.

The square root of 79719 is about 282.3455329910. The cubic root of 79719 is about 43.0381849379.

The spelling of 79719 in words is "seventy-nine thousand, seven hundred nineteen".