320017 has 4 divisors (see below), whose sum is σ = 336880. Its totient is φ = 303156.

The previous prime is 320011. The next prime is 320027. The reversal of 320017 is 710023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320017 - 2³ = 320009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 319979 and 320006.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320017.

It is not an unprimeable number, because it can be changed into a prime (320011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8403 + ... + 8440.

It is an arithmetic number, because the mean of its divisors is an integer number (84220).

2³²⁰⁰¹⁷ is an apocalyptic number.

It is an amenable number.

320017 is a deficient number, since it is larger than the sum of its proper divisors (16863).

320017 is a wasteful number, since it uses less digits than its factorization.

320017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16862.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 320017 is about 565.7004507688. The cubic root of 320017 is about 68.4002490786.

The spelling of 320017 in words is "three hundred twenty thousand, seventeen", and thus it is an iban number.