6817873 has 2 divisors, whose sum is σ = 6817874. Its totient is φ = 6817872.

The previous prime is 6817859. The next prime is 6817891. The reversal of 6817873 is 3787186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5721664 + 1096209 = 2392^2 + 1047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6817873 is a prime.

It is not a weakly prime, because it can be changed into another prime (6817823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408936 + 3408937.

It is an arithmetic number, because the mean of its divisors is an integer number (3408937).

Almost surely, 2^6817873 is an apocalyptic number.

It is an amenable number.

6817873 is a deficient number, since it is larger than the sum of its proper divisors (1).

6817873 is an equidigital number, since it uses as much as digits as its factorization.

6817873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 6817873 is about 2611.1057044861. The cubic root of 6817873 is about 189.6194877659.

The spelling of 6817873 in words is "six million, eight hundred seventeen thousand, eight hundred seventy-three".