74443 has 8 divisors (see below), whose sum is σ = 82080. Its totient is φ = 67200.

The previous prime is 74441. The next prime is 74449. The reversal of 74443 is 34447.

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 74443 - 2¹ = 74441 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (74441) 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, 418 + ... + 568.

It is an arithmetic number, because the mean of its divisors is an integer number (10260).

2⁷⁴⁴⁴³ is an apocalyptic number.

74443 is a deficient number, since it is larger than the sum of its proper divisors (7637).

74443 is a wasteful number, since it uses less digits than its factorization.

74443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197.

The product of its digits is 1344, while the sum is 22.

The square root of 74443 is about 272.8424453783. The cubic root of 74443 is about 42.0669755288.

It can be divided in two parts, 7444 and 3, that added together give a palindrome (7447).

The spelling of 74443 in words is "seventy-four thousand, four hundred forty-three", and thus it is an iban number.