8347 has 4 divisors (see below), whose sum is σ = 8856. Its totient is φ = 7840.

The previous prime is 8329. The next prime is 8353. The reversal of 8347 is 7438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7438 = 2 ⋅3719.

It is a cyclic number.

It is not a de Polignac number, because 8347 - 2⁷ = 8219 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Duffinian number.

8347 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8317) 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, 229 + ... + 262.

It is an arithmetic number, because the mean of its divisors is an integer number (2214).

2⁸³⁴⁷ is an apocalyptic number.

8347 is a deficient number, since it is larger than the sum of its proper divisors (509).

8347 is a wasteful number, since it uses less digits than its factorization.

8347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508.

The product of its digits is 672, while the sum is 22.

The square root of 8347 is about 91.3619176681. The cubic root of 8347 is about 20.2850837223.

Subtracting from 8347 its reverse (7438), we obtain a palindrome (909).

It can be divided in two parts, 834 and 7, that added together give a square (841 = 29²).

The spelling of 8347 in words is "eight thousand, three hundred forty-seven".