6697897 has 2 divisors, whose sum is σ = 6697898. Its totient is φ = 6697896.

The previous prime is 6697877. The next prime is 6697921. The reversal of 6697897 is 7987966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6651241 + 46656 = 2579^2 + 216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6697897 is a prime.

It is not a weakly prime, because it can be changed into another prime (6697837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3348948 + 3348949.

It is an arithmetic number, because the mean of its divisors is an integer number (3348949).

Almost surely, 2^6697897 is an apocalyptic number.

It is an amenable number.

6697897 is a deficient number, since it is larger than the sum of its proper divisors (1).

6697897 is an equidigital number, since it uses as much as digits as its factorization.

6697897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 52.

The square root of 6697897 is about 2588.0295593366. The cubic root of 6697897 is about 188.5006367433.

The spelling of 6697897 in words is "six million, six hundred ninety-seven thousand, eight hundred ninety-seven".