680317 has 8 divisors (see below), whose sum is σ = 774720. Its totient is φ = 591360.

The previous prime is 680299. The next prime is 680321. The reversal of 680317 is 713086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680317 - 2⁷ = 680189 is a prime.

It is a Duffinian number.

680317 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 680291 and 680300.

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 680317.

It is not an unprimeable number, because it can be changed into a prime (680327) 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 in 7 ways as a sum of consecutive naturals, for example, 1092 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (96840).

2⁶⁸⁰³¹⁷ is an apocalyptic number.

It is an amenable number.

680317 is a deficient number, since it is larger than the sum of its proper divisors (94403).

680317 is a wasteful number, since it uses less digits than its factorization.

680317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 680317 is about 824.8133122107. The cubic root of 680317 is about 87.9502559773.

The spelling of 680317 in words is "six hundred eighty thousand, three hundred seventeen".