79318 has 4 divisors (see below), whose sum is σ = 118980. Its totient is φ = 39658.

The previous prime is 79309. The next prime is 79319. The reversal of 79318 is 81397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81397 = 23 ⋅3539.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19828 + ... + 19831.

It is an arithmetic number, because the mean of its divisors is an integer number (29745).

2⁷⁹³¹⁸ is an apocalyptic number.

79318 is a deficient number, since it is larger than the sum of its proper divisors (39662).

79318 is a wasteful number, since it uses less digits than its factorization.

79318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39661.

The product of its digits is 1512, while the sum is 28.

The square root of 79318 is about 281.6345149303. The cubic root of 79318 is about 42.9659004942.

The spelling of 79318 in words is "seventy-nine thousand, three hundred eighteen".