6943 has 4 divisors (see below), whose sum is σ = 7128. Its totient is φ = 6760.

The previous prime is 6917. The next prime is 6947. The reversal of 6943 is 3496.

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

It is a cyclic number.

It is not a de Polignac number, because 6943 - 2⁵ = 6911 is a prime.

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

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6947) 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, 13 + ... + 118.

It is an arithmetic number, because the mean of its divisors is an integer number (1782).

6943 is the 53-rd heptagonal number.

6943 is a deficient number, since it is larger than the sum of its proper divisors (185).

6943 is a wasteful number, since it uses less digits than its factorization.

6943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184.

The product of its digits is 648, while the sum is 22.

The square root of 6943 is about 83.3246662160. The cubic root of 6943 is about 19.0772478366.

It can be divided in two parts, 6 and 943, that added together give a palindrome (949).

The spelling of 6943 in words is "six thousand, nine hundred forty-three".