6406717 has 2 divisors, whose sum is σ = 6406718. Its totient is φ = 6406716.

The previous prime is 6406691. The next prime is 6406721. The reversal of 6406717 is 7176046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5982916 + 423801 = 2446^2 + 651^2 .

It is a cyclic number.

It is not a de Polignac number, because 6406717 - 2¹¹ = 6404669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6406727) 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, 3203358 + 3203359.

It is an arithmetic number, because the mean of its divisors is an integer number (3203359).

Almost surely, 2^6406717 is an apocalyptic number.

It is an amenable number.

6406717 is a deficient number, since it is larger than the sum of its proper divisors (1).

6406717 is an equidigital number, since it uses as much as digits as its factorization.

6406717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 6406717 is about 2531.1493436777. The cubic root of 6406717 is about 185.7284838680.

The spelling of 6406717 in words is "six million, four hundred six thousand, seven hundred seventeen".