6817897 has 2 divisors, whose sum is σ = 6817898. Its totient is φ = 6817896.

The previous prime is 6817891. The next prime is 6817927. The reversal of 6817897 is 7987186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6817321 + 576 = 2611^2 + 24^2 .

It is a cyclic number.

It is not a de Polignac number, because 6817897 - 2¹¹ = 6815849 is a prime.

It is not a weakly prime, because it can be changed into another prime (6817891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408948 + 3408949.

It is an arithmetic number, because the mean of its divisors is an integer number (3408949).

Almost surely, 2^6817897 is an apocalyptic number.

It is an amenable number.

6817897 is a deficient number, since it is larger than the sum of its proper divisors (1).

6817897 is an equidigital number, since it uses as much as digits as its factorization.

6817897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 46.

The square root of 6817897 is about 2611.1103002363. The cubic root of 6817897 is about 189.6197102626.

The spelling of 6817897 in words is "six million, eight hundred seventeen thousand, eight hundred ninety-seven".