6816843 has 24 divisors (see below), whose sum is σ = 11037936. Its totient is φ = 4017600.

The previous prime is 6816841. The next prime is 6816851. The reversal of 6816843 is 3486186.

It is a happy number.

It is not a de Polignac number, because 6816843 - 2¹ = 6816841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6816798 and 6816807.

It is not an unprimeable number, because it can be changed into a prime (6816841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2733 + ... + 4593.

It is an arithmetic number, because the mean of its divisors is an integer number (459914).

Almost surely, 2^6816843 is an apocalyptic number.

6816843 is a deficient number, since it is larger than the sum of its proper divisors (4221093).

6816843 is a wasteful number, since it uses less digits than its factorization.

6816843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915 (or 1912 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6816843 is about 2610.9084625854. The cubic root of 6816843 is about 189.6099384578.

The spelling of 6816843 in words is "six million, eight hundred sixteen thousand, eight hundred forty-three".