6823 has 2 divisors, whose sum is σ = 6824. Its totient is φ = 6822.

The previous prime is 6803. The next prime is 6827. The reversal of 6823 is 3286.

It is a strong prime.

6823 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 6823 - 2⁵ = 6791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6827) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3411 + 3412.

It is an arithmetic number, because the mean of its divisors is an integer number (3412).

6823 is a deficient number, since it is larger than the sum of its proper divisors (1).

6823 is an equidigital number, since it uses as much as digits as its factorization.

6823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 6823 is about 82.6014527717. The cubic root of 6823 is about 18.9667006766.

It can be divided in two parts, 68 and 23, that added together give a triangular number (91 = T₁₃).

The spelling of 6823 in words is "six thousand, eight hundred twenty-three".