6696257 has 2 divisors, whose sum is σ = 6696258. Its totient is φ = 6696256.

The previous prime is 6696253. The next prime is 6696259. The reversal of 6696257 is 7526966.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3682561 + 3013696 = 1919^2 + 1736^2 .

It is a cyclic number.

It is not a de Polignac number, because 6696257 - 2² = 6696253 is a prime.

Together with 6696259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6696253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3348128 + 3348129.

It is an arithmetic number, because the mean of its divisors is an integer number (3348129).

Almost surely, 2^6696257 is an apocalyptic number.

It is an amenable number.

6696257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6696257 is an equidigital number, since it uses as much as digits as its factorization.

6696257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 6696257 is about 2587.7126965720. The cubic root of 6696257 is about 188.4852505070.

The spelling of 6696257 in words is "six million, six hundred ninety-six thousand, two hundred fifty-seven".