79617 has 4 divisors (see below), whose sum is σ = 106160. Its totient is φ = 53076.

The previous prime is 79613. The next prime is 79621. The reversal of 79617 is 71697.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71697 = 3 ⋅23899.

It is an interprime number because it is at equal distance from previous prime (79613) and next prime (79621).

It is not a de Polignac number, because 79617 - 2² = 79613 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (79613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13267 + ... + 13272.

It is an arithmetic number, because the mean of its divisors is an integer number (26540).

2⁷⁹⁶¹⁷ is an apocalyptic number.

It is an amenable number.

79617 is a deficient number, since it is larger than the sum of its proper divisors (26543).

79617 is a wasteful number, since it uses less digits than its factorization.

79617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26542.

The product of its digits is 2646, while the sum is 30.

The square root of 79617 is about 282.1648454361. The cubic root of 79617 is about 43.0198214007.

It can be divided in two parts, 79 and 617, that added together give a palindrome (696).

The spelling of 79617 in words is "seventy-nine thousand, six hundred seventeen".