84317 has 2 divisors, whose sum is σ = 84318. Its totient is φ = 84316.

The previous prime is 84313. The next prime is 84319. The reversal of 84317 is 71348.

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., 63001 + 21316 = 251^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 84317 - 2² = 84313 is a prime.

Together with 84319, it forms a pair of twin primes.

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 = 84292 and 84301.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84317.

It is not a weakly prime, because it can be changed into another prime (84313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42158 + 42159.

It is an arithmetic number, because the mean of its divisors is an integer number (42159).

2⁸⁴³¹⁷ is an apocalyptic number.

It is an amenable number.

84317 is a deficient number, since it is larger than the sum of its proper divisors (1).

84317 is an equidigital number, since it uses as much as digits as its factorization.

84317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 84317 is about 290.3738968985. The cubic root of 84317 is about 43.8502138122.

The spelling of 84317 in words is "eighty-four thousand, three hundred seventeen".