680174717 has 2 divisors, whose sum is σ = 680174718. Its totient is φ = 680174716.

The previous prime is 680174701. The next prime is 680174773. The reversal of 680174717 is 717471086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442429156 + 237745561 = 21034^2 + 15419^2 .

It is a cyclic number.

It is not a de Polignac number, because 680174717 - 2⁴ = 680174701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680174797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340087358 + 340087359.

It is an arithmetic number, because the mean of its divisors is an integer number (340087359).

Almost surely, 2^680174717 is an apocalyptic number.

It is an amenable number.

680174717 is a deficient number, since it is larger than the sum of its proper divisors (1).

680174717 is an equidigital number, since it uses as much as digits as its factorization.

680174717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 41.

The square root of 680174717 is about 26080.1594511997. The cubic root of 680174717 is about 879.4412417950.

It can be divided in two parts, 6801 and 74717, that added together give a palindrome (81518).

The spelling of 680174717 in words is "six hundred eighty million, one hundred seventy-four thousand, seven hundred seventeen".