380217317 has 2 divisors, whose sum is σ = 380217318. Its totient is φ = 380217316.

The previous prime is 380217281. The next prime is 380217319. The reversal of 380217317 is 713712083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343323841 + 36893476 = 18529^2 + 6074^2 .

It is a cyclic number.

It is not a de Polignac number, because 380217317 - 2²⁴ = 363440101 is a prime.

Together with 380217319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380217319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190108658 + 190108659.

It is an arithmetic number, because the mean of its divisors is an integer number (190108659).

Almost surely, 2^380217317 is an apocalyptic number.

It is an amenable number.

380217317 is a deficient number, since it is larger than the sum of its proper divisors (1).

380217317 is an equidigital number, since it uses as much as digits as its factorization.

380217317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 380217317 is about 19499.1619563508. The cubic root of 380217317 is about 724.4536935602.

The spelling of 380217317 in words is "three hundred eighty million, two hundred seventeen thousand, three hundred seventeen".