304217 has 2 divisors, whose sum is σ = 304218. Its totient is φ = 304216.

The previous prime is 304211. The next prime is 304223. The reversal of 304217 is 712403.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (304211) and next prime (304223).

It can be written as a sum of positive squares in only one way, i.e., 295936 + 8281 = 544^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 304217 - 2⁶ = 304153 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 304195 and 304204.

It is not a weakly prime, because it can be changed into another prime (304211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152108 + 152109.

It is an arithmetic number, because the mean of its divisors is an integer number (152109).

2³⁰⁴²¹⁷ is an apocalyptic number.

It is an amenable number.

304217 is a deficient number, since it is larger than the sum of its proper divisors (1).

304217 is an equidigital number, since it uses as much as digits as its factorization.

304217 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 304217 is about 551.5587004118. The cubic root of 304217 is about 67.2555032049.

The spelling of 304217 in words is "three hundred four thousand, two hundred seventeen", and thus it is an iban number.