6800657 has 2 divisors, whose sum is σ = 6800658. Its totient is φ = 6800656.

The previous prime is 6800653. The next prime is 6800669. The reversal of 6800657 is 7560086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5202961 + 1597696 = 2281^2 + 1264^2 .

It is a cyclic number.

It is not a de Polignac number, because 6800657 - 2² = 6800653 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6800653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400328 + 3400329.

It is an arithmetic number, because the mean of its divisors is an integer number (3400329).

Almost surely, 2^6800657 is an apocalyptic number.

It is an amenable number.

6800657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6800657 is an equidigital number, since it uses as much as digits as its factorization.

6800657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 6800657 is about 2607.8069330378. The cubic root of 6800657 is about 189.4597487626.

The spelling of 6800657 in words is "six million, eight hundred thousand, six hundred fifty-seven".