6700657 has 2 divisors, whose sum is σ = 6700658. Its totient is φ = 6700656.

The previous prime is 6700651. The next prime is 6700691. The reversal of 6700657 is 7560076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6431296 + 269361 = 2536^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 6700657 - 2¹⁵ = 6667889 is a prime.

It is not a weakly prime, because it can be changed into another prime (6700651) 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, 3350328 + 3350329.

It is an arithmetic number, because the mean of its divisors is an integer number (3350329).

Almost surely, 2^6700657 is an apocalyptic number.

It is an amenable number.

6700657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6700657 is an equidigital number, since it uses as much as digits as its factorization.

6700657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 6700657 is about 2588.5627286199. The cubic root of 6700657 is about 188.5265249842.

The spelling of 6700657 in words is "six million, seven hundred thousand, six hundred fifty-seven".