680759 has 2 divisors, whose sum is σ = 680760. Its totient is φ = 680758.

The previous prime is 680749. The next prime is 680767. The reversal of 680759 is 957086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680759 - 2⁸ = 680503 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680759.

It is not a weakly prime, because it can be changed into another prime (680749) 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, 340379 + 340380.

It is an arithmetic number, because the mean of its divisors is an integer number (340380).

2⁶⁸⁰⁷⁵⁹ is an apocalyptic number.

680759 is a deficient number, since it is larger than the sum of its proper divisors (1).

680759 is an equidigital number, since it uses as much as digits as its factorization.

680759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 680759 is about 825.0812081244. The cubic root of 680759 is about 87.9692988633.

The spelling of 680759 in words is "six hundred eighty thousand, seven hundred fifty-nine".