74579 has 8 divisors (see below), whose sum is σ = 81648. Its totient is φ = 67840.

The previous prime is 74573. The next prime is 74587. The reversal of 74579 is 97547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74579 - 2⁸ = 74323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74573) 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, 644 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (10206).

2⁷⁴⁵⁷⁹ is an apocalyptic number.

74579 is a deficient number, since it is larger than the sum of its proper divisors (7069).

74579 is a wasteful number, since it uses less digits than its factorization.

74579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its digits is 8820, while the sum is 32.

The square root of 74579 is about 273.0915597378. The cubic root of 74579 is about 42.0925773461.

Subtracting from 74579 its sum of digits (32), we obtain a palindrome (74547).

The spelling of 74579 in words is "seventy-four thousand, five hundred seventy-nine".