74979 has 8 divisors (see below), whose sum is σ = 111120. Its totient is φ = 49968.

The previous prime is 74959. The next prime is 75011. The reversal of 74979 is 97947.

It is not a de Polignac number, because 74979 - 2¹¹ = 72931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362 + ... + 1415.

It is an arithmetic number, because the mean of its divisors is an integer number (13890).

2⁷⁴⁹⁷⁹ is an apocalyptic number.

74979 is a deficient number, since it is larger than the sum of its proper divisors (36141).

74979 is a wasteful number, since it uses less digits than its factorization.

74979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2780 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 74979 is about 273.8229354893. The cubic root of 74979 is about 42.1676968786.

It can be divided in two parts, 749 and 79, that added together give a palindrome (828).

The spelling of 74979 in words is "seventy-four thousand, nine hundred seventy-nine".