74393 has 4 divisors (see below), whose sum is σ = 81168. Its totient is φ = 67620.

The previous prime is 74383. The next prime is 74411. The reversal of 74393 is 39347.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74393 - 2⁴ = 74377 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (74323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3371 + ... + 3392.

It is an arithmetic number, because the mean of its divisors is an integer number (20292).

2⁷⁴³⁹³ is an apocalyptic number.

It is an amenable number.

74393 is a deficient number, since it is larger than the sum of its proper divisors (6775).

74393 is a wasteful number, since it uses less digits than its factorization.

74393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774.

The product of its digits is 2268, while the sum is 26.

The square root of 74393 is about 272.7508020153. The cubic root of 74393 is about 42.0575552571.

The spelling of 74393 in words is "seventy-four thousand, three hundred ninety-three".