199417 has 2 divisors, whose sum is σ = 199418. Its totient is φ = 199416.

The previous prime is 199411. The next prime is 199429. The reversal of 199417 is 714991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184041 + 15376 = 429^2 + 124^2 .

It is an emirp because it is prime and its reverse (714991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199417 - 2⁷ = 199289 is a prime.

It is not a weakly prime, because it can be changed into another prime (199411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99708 + 99709.

It is an arithmetic number, because the mean of its divisors is an integer number (99709).

2¹⁹⁹⁴¹⁷ is an apocalyptic number.

It is an amenable number.

199417 is a deficient number, since it is larger than the sum of its proper divisors (1).

199417 is an equidigital number, since it uses as much as digits as its factorization.

199417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 31.

The square root of 199417 is about 446.5613059816. The cubic root of 199417 is about 58.4234760499.

It can be divided in two parts, 199 and 417, that added together give a palindrome (616).

The spelling of 199417 in words is "one hundred ninety-nine thousand, four hundred seventeen".