199603 has 2 divisors, whose sum is σ = 199604. Its totient is φ = 199602.

The previous prime is 199601. The next prime is 199621. The reversal of 199603 is 306991.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (306991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199603 - 2¹ = 199601 is a prime.

Together with 199601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (199601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99801 + 99802.

It is an arithmetic number, because the mean of its divisors is an integer number (99802).

2¹⁹⁹⁶⁰³ is an apocalyptic number.

199603 is a deficient number, since it is larger than the sum of its proper divisors (1).

199603 is an equidigital number, since it uses as much as digits as its factorization.

199603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 199603 is about 446.7695155223. The cubic root of 199603 is about 58.4416346317.

The spelling of 199603 in words is "one hundred ninety-nine thousand, six hundred three".