19417 has 2 divisors, whose sum is σ = 19418. Its totient is φ = 19416.

The previous prime is 19403. The next prime is 19421. The reversal of 19417 is 71491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10201 + 9216 = 101^2 + 96^2 .

It is a cyclic number.

It is not a de Polignac number, because 19417 - 2⁷ = 19289 is a prime.

It is a Chen prime.

19417 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (19427) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9708 + 9709.

It is an arithmetic number, because the mean of its divisors is an integer number (9709).

2¹⁹⁴¹⁷ is an apocalyptic number.

It is an amenable number.

19417 is a deficient number, since it is larger than the sum of its proper divisors (1).

19417 is an equidigital number, since it uses as much as digits as its factorization.

19417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 22.

The square root of 19417 is about 139.3448958520. The cubic root of 19417 is about 26.8778201475.

The spelling of 19417 in words is "nineteen thousand, four hundred seventeen".