6843 has 4 divisors (see below), whose sum is σ = 9128. Its totient is φ = 4560.

The previous prime is 6841. The next prime is 6857. The reversal of 6843 is 3486.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6843 - 2¹ = 6841 is a prime.

It is a D-number.

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 (6841) 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, 1138 + ... + 1143.

It is an arithmetic number, because the mean of its divisors is an integer number (2282).

2⁶⁸⁴³ is an apocalyptic number.

6843 is a deficient number, since it is larger than the sum of its proper divisors (2285).

6843 is a wasteful number, since it uses less digits than its factorization.

6843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284.

The product of its digits is 576, while the sum is 21.

The square root of 6843 is about 82.7224274305. The cubic root of 6843 is about 18.9852147209.

It can be divided in two parts, 68 and 43, that added together give a palindrome (111).

The spelling of 6843 in words is "six thousand, eight hundred forty-three".