47317 has 2 divisors, whose sum is σ = 47318. Its totient is φ = 47316.
The previous prime is 47309. The next prime is 47339. The reversal of 47317 is 71374.
It is an a-pointer prime, because the next prime (47339) can be obtained adding 47317 to its sum of digits (22).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 45796 + 1521 = 214^2 + 39^2 .
It is a cyclic number.
It is not a de Polignac number, because 47317 - 23 = 47309 is a prime.
It is a Chen prime.
It is a plaindrome in base 14.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (47387) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23658 + 23659.
It is an arithmetic number, because the mean of its divisors is an integer number (23659).
247317 is an apocalyptic number.
It is an amenable number.
47317 is a deficient number, since it is larger than the sum of its proper divisors (1).
47317 is an equidigital number, since it uses as much as digits as its factorization.
47317 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 588, while the sum is 22.
The square root of 47317 is about 217.5247112399. The cubic root of 47317 is about 36.1692136734.
The spelling of 47317 in words is "forty-seven thousand, three hundred seventeen", and thus it is an iban number.
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