199607 has 4 divisors (see below), whose sum is σ = 206520. Its totient is φ = 192696.

The previous prime is 199603. The next prime is 199621. The reversal of 199607 is 706991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 706991 = 29 ⋅24379.

It is a cyclic number.

It is not a de Polignac number, because 199607 - 2² = 199603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3413 + ... + 3470.

It is an arithmetic number, because the mean of its divisors is an integer number (51630).

2¹⁹⁹⁶⁰⁷ is an apocalyptic number.

199607 is a deficient number, since it is larger than the sum of its proper divisors (6913).

199607 is an equidigital number, since it uses as much as digits as its factorization.

199607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 199607 is about 446.7739920810. The cubic root of 199607 is about 58.4420250149.

The spelling of 199607 in words is "one hundred ninety-nine thousand, six hundred seven".