74347 has 16 divisors (see below), whose sum is σ = 98560. Its totient is φ = 54432.

The previous prime is 74323. The next prime is 74353.

It is a happy number.

74347 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74347 - 2⁷ = 74219 is a prime.

It is an alternating number because its digits alternate between odd and even.

74347 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (74317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (6160).

2⁷⁴³⁴⁷ is an apocalyptic number.

74347 is a deficient number, since it is larger than the sum of its proper divisors (24213).

74347 is a wasteful number, since it uses less digits than its factorization.

74347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82.

The product of its digits is 2352, while the sum is 25.

The square root of 74347 is about 272.6664629176. Note that the first 3 decimals coincide. The cubic root of 74347 is about 42.0488848785.

The spelling of 74347 in words is "seventy-four thousand, three hundred forty-seven", and thus it is an iban number.