74472379 has 4 divisors (see below), whose sum is σ = 76485184. Its totient is φ = 72459576.

The previous prime is 74472373. The next prime is 74472383. The reversal of 74472379 is 97327447.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74472379 - 2⁵ = 74472347 is a prime.

It is a super-2 number, since 2×74472379² = 11092270467839282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74472373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006347 + ... + 1006420.

It is an arithmetic number, because the mean of its divisors is an integer number (19121296).

Almost surely, 2^74472379 is an apocalyptic number.

74472379 is a deficient number, since it is larger than the sum of its proper divisors (2012805).

74472379 is a wasteful number, since it uses less digits than its factorization.

74472379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012804.

The product of its digits is 296352, while the sum is 43.

The square root of 74472379 is about 8629.7380609147. The cubic root of 74472379 is about 420.7250872484.

The spelling of 74472379 in words is "seventy-four million, four hundred seventy-two thousand, three hundred seventy-nine".