6813817 has 2 divisors, whose sum is σ = 6813818. Its totient is φ = 6813816.

The previous prime is 6813797. The next prime is 6813847. The reversal of 6813817 is 7183186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5861241 + 952576 = 2421^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 6813817 - 2⁷ = 6813689 is a prime.

It is not a weakly prime, because it can be changed into another prime (6813847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406908 + 3406909.

It is an arithmetic number, because the mean of its divisors is an integer number (3406909).

Almost surely, 2^6813817 is an apocalyptic number.

It is an amenable number.

6813817 is a deficient number, since it is larger than the sum of its proper divisors (1).

6813817 is an equidigital number, since it uses as much as digits as its factorization.

6813817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 6813817 is about 2610.3289064790. The cubic root of 6813817 is about 189.5818783234.

The spelling of 6813817 in words is "six million, eight hundred thirteen thousand, eight hundred seventeen".