680767 has 2 divisors, whose sum is σ = 680768. Its totient is φ = 680766.

The previous prime is 680759. The next prime is 680783. The reversal of 680767 is 767086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680767 - 2³ = 680759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340383 + 340384.

It is an arithmetic number, because the mean of its divisors is an integer number (340384).

2⁶⁸⁰⁷⁶⁷ is an apocalyptic number.

680767 is a deficient number, since it is larger than the sum of its proper divisors (1).

680767 is an equidigital number, since it uses as much as digits as its factorization.

680767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 680767 is about 825.0860561178. The cubic root of 680767 is about 87.9696434550.

The spelling of 680767 in words is "six hundred eighty thousand, seven hundred sixty-seven".