199895 has 4 divisors (see below), whose sum is σ = 239880. Its totient is φ = 159912.

The previous prime is 199889. The next prime is 199909. The reversal of 199895 is 598991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 598991 = 683 ⋅877.

It is a cyclic number.

It is not a de Polignac number, because 199895 - 2⁶ = 199831 is a prime.

It is a super-2 number, since 2×199895² = 79916022050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19985 + ... + 19994.

It is an arithmetic number, because the mean of its divisors is an integer number (59970).

2¹⁹⁹⁸⁹⁵ is an apocalyptic number.

199895 is a deficient number, since it is larger than the sum of its proper divisors (39985).

199895 is an equidigital number, since it uses as much as digits as its factorization.

199895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39984.

The product of its digits is 29160, while the sum is 41.

The square root of 199895 is about 447.0961865192. The cubic root of 199895 is about 58.4701189107.

The spelling of 199895 in words is "one hundred ninety-nine thousand, eight hundred ninety-five".