6696857 has 2 divisors, whose sum is σ = 6696858. Its totient is φ = 6696856.

The previous prime is 6696853. The next prime is 6696869. The reversal of 6696857 is 7586966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4748041 + 1948816 = 2179^2 + 1396^2 .

It is a cyclic number.

It is not a de Polignac number, because 6696857 - 2² = 6696853 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6696853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3348428 + 3348429.

It is an arithmetic number, because the mean of its divisors is an integer number (3348429).

Almost surely, 2^6696857 is an apocalyptic number.

It is an amenable number.

6696857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6696857 is an equidigital number, since it uses as much as digits as its factorization.

6696857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 6696857 is about 2587.8286264743. The cubic root of 6696857 is about 188.4908799092.

The spelling of 6696857 in words is "six million, six hundred ninety-six thousand, eight hundred fifty-seven".