320417 has 2 divisors, whose sum is σ = 320418. Its totient is φ = 320416.

The previous prime is 320401. The next prime is 320431. The reversal of 320417 is 714023.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190096 + 130321 = 436^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 320417 - 2⁴ = 320401 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 320395 and 320404.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320417.

It is not a weakly prime, because it can be changed into another prime (320477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160208 + 160209.

It is an arithmetic number, because the mean of its divisors is an integer number (160209).

2³²⁰⁴¹⁷ is an apocalyptic number.

It is an amenable number.

320417 is a deficient number, since it is larger than the sum of its proper divisors (1).

320417 is an equidigital number, since it uses as much as digits as its factorization.

320417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 320417 is about 566.0538843608. The cubic root of 320417 is about 68.4287358028.

Subtracting from 320417 its sum of digits (17), we obtain a triangular number (320400 = T₈₀₀).

It can be divided in two parts, 320 and 417, that added together give a palindrome (737).

The spelling of 320417 in words is "three hundred twenty thousand, four hundred seventeen", and thus it is an iban number.