74409323 has 4 divisors (see below), whose sum is σ = 78786360. Its totient is φ = 70032288.

The previous prime is 74409299. The next prime is 74409353. The reversal of 74409323 is 32390447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32390447 = 229 ⋅141443.

It is a cyclic number.

It is not a de Polignac number, because 74409323 - 2²⁰ = 73360747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74409323.

It is not an unprimeable number, because it can be changed into a prime (74409353) 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, 2188493 + ... + 2188526.

It is an arithmetic number, because the mean of its divisors is an integer number (19696590).

Almost surely, 2^74409323 is an apocalyptic number.

74409323 is a deficient number, since it is larger than the sum of its proper divisors (4377037).

74409323 is a wasteful number, since it uses less digits than its factorization.

74409323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377036.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 74409323 is about 8626.0838739256. The cubic root of 74409323 is about 420.6063106297.

The spelling of 74409323 in words is "seventy-four million, four hundred nine thousand, three hundred twenty-three".