6816617 has 2 divisors, whose sum is σ = 6816618. Its totient is φ = 6816616.

The previous prime is 6816613. The next prime is 6816629. The reversal of 6816617 is 7166186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5480281 + 1336336 = 2341^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 6816617 - 2² = 6816613 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6816613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408308 + 3408309.

It is an arithmetic number, because the mean of its divisors is an integer number (3408309).

Almost surely, 2^6816617 is an apocalyptic number.

It is an amenable number.

6816617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6816617 is an equidigital number, since it uses as much as digits as its factorization.

6816617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 6816617 is about 2610.8651822720. The cubic root of 6816617 is about 189.6078430441.

The spelling of 6816617 in words is "six million, eight hundred sixteen thousand, six hundred seventeen".