680417 has 2 divisors, whose sum is σ = 680418. Its totient is φ = 680416.

The previous prime is 680411. The next prime is 680431. The reversal of 680417 is 714086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 583696 + 96721 = 764^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 680417 - 2⁴ = 680401 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680417.

It is not a weakly prime, because it can be changed into another prime (680411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340208 + 340209.

It is an arithmetic number, because the mean of its divisors is an integer number (340209).

2⁶⁸⁰⁴¹⁷ is an apocalyptic number.

It is an amenable number.

680417 is a deficient number, since it is larger than the sum of its proper divisors (1).

680417 is an equidigital number, since it uses as much as digits as its factorization.

680417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 680417 is about 824.8739297614. The cubic root of 680417 is about 87.9545650443.

The spelling of 680417 in words is "six hundred eighty thousand, four hundred seventeen".