79759 has 4 divisors (see below), whose sum is σ = 81504. Its totient is φ = 78016.

The previous prime is 79757. The next prime is 79769. The reversal of 79759 is 95797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95797 = 13 ⋅7369.

It is a cyclic number.

It is not a de Polignac number, because 79759 - 2¹ = 79757 is a prime.

It is a super-2 number, since 2×79759² = 12722996162, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7² + 9³ + 7⁵ + 5⁵ + 9⁵ .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79757) 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, 802 + ... + 895.

It is an arithmetic number, because the mean of its divisors is an integer number (20376).

2⁷⁹⁷⁵⁹ is an apocalyptic number.

79759 is a deficient number, since it is larger than the sum of its proper divisors (1745).

79759 is a wasteful number, since it uses less digits than its factorization.

79759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744.

The product of its digits is 19845, while the sum is 37.

The square root of 79759 is about 282.4163592995. The cubic root of 79759 is about 43.0453820492.

It can be divided in two parts, 79 and 759, that added together give a palindrome (838).

The spelling of 79759 in words is "seventy-nine thousand, seven hundred fifty-nine".