17393 has 2 divisors, whose sum is σ = 17394.
Its totient is φ = 17392.
The previous prime is 17389. The next prime is 17401. The reversal of 17393 is 39371.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12769 + 4624 = 113^2 + 68^2
It is an emirp because it is prime and its reverse (39371) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 17393 - 22 = 17389 is a prime.
It is a plaindrome in base 13.
It is not a weakly prime, because it can be changed into another prime (17333) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8696 + 8697.
It is an arithmetic number, because the mean of its divisors is an integer number (8697).
217393 is an apocalyptic number.
It is an amenable number.
17393 is a deficient number, since it is larger than the sum of its proper divisors (1).
17393 is an equidigital number, since it uses as much as digits as its factorization.
17393 is an evil number, because the sum of its binary digits is even.
The product of its digits is 567, while the sum is 23.
The square root of 17393 is about 131.8825234821.
The cubic root of 17393 is about 25.9094483102.
The spelling of 17393 in words is "seventeen thousand, three hundred ninety-three".