6505717 has 2 divisors, whose sum is σ = 6505718. Its totient is φ = 6505716.

The previous prime is 6505703. The next prime is 6505783. The reversal of 6505717 is 7175056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5503716 + 1002001 = 2346^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 6505717 - 2¹¹ = 6503669 is a prime.

6505717 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6505117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3252858 + 3252859.

It is an arithmetic number, because the mean of its divisors is an integer number (3252859).

Almost surely, 2^6505717 is an apocalyptic number.

It is an amenable number.

6505717 is a deficient number, since it is larger than the sum of its proper divisors (1).

6505717 is an equidigital number, since it uses as much as digits as its factorization.

6505717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 6505717 is about 2550.6307063156. The cubic root of 6505717 is about 186.6802565928.

The spelling of 6505717 in words is "six million, five hundred five thousand, seven hundred seventeen".