79659 has 12 divisors (see below), whose sum is σ = 117936. Its totient is φ = 51792.

The previous prime is 79657. The next prime is 79669. The reversal of 79659 is 95697.

It is not a de Polignac number, because 79659 - 2¹ = 79657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (9828).

2⁷⁹⁶⁵⁹ is an apocalyptic number.

79659 is a deficient number, since it is larger than the sum of its proper divisors (38277).

79659 is a wasteful number, since it uses less digits than its factorization.

79659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 223 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 79659 is about 282.2392602031. The cubic root of 79659 is about 43.0273847556.

Adding to 79659 its product of digits (17010), we get a palindrome (96669).

It can be divided in two parts, 796 and 59, that multiplied together give a palindrome (46964).

The spelling of 79659 in words is "seventy-nine thousand, six hundred fifty-nine".