320004017 has 2 divisors, whose sum is σ = 320004018. Its totient is φ = 320004016.

The previous prime is 320004011. The next prime is 320004121. The reversal of 320004017 is 710400023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204032656 + 115971361 = 14284^2 + 10769^2 .

It is a cyclic number.

It is not a de Polignac number, because 320004017 - 2⁶ = 320003953 is a prime.

It is a super-2 number, since 2×320004017² = 204805141792272578, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 320003986 and 320004004.

It is not a weakly prime, because it can be changed into another prime (320004011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160002008 + 160002009.

It is an arithmetic number, because the mean of its divisors is an integer number (160002009).

Almost surely, 2^320004017 is an apocalyptic number.

It is an amenable number.

320004017 is a deficient number, since it is larger than the sum of its proper divisors (1).

320004017 is an equidigital number, since it uses as much as digits as its factorization.

320004017 is an evil number, because the sum of its binary digits is even.

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

The square root of 320004017 is about 17888.6560982093. The cubic root of 320004017 is about 683.9932407309.

The spelling of 320004017 in words is "three hundred twenty million, four thousand, seventeen".