199104089 has 4 divisors (see below), whose sum is σ = 199678224. Its totient is φ = 198529956.

The previous prime is 199104083. The next prime is 199104203. The reversal of 199104089 is 980401991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 980401991 = 3803 ⋅257797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199104089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199104083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286547 + ... + 287240.

It is an arithmetic number, because the mean of its divisors is an integer number (49919556).

Almost surely, 2^199104089 is an apocalyptic number.

It is an amenable number.

199104089 is a deficient number, since it is larger than the sum of its proper divisors (574135).

199104089 is an equidigital number, since it uses as much as digits as its factorization.

199104089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574134.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 199104089 is about 14110.4248341430. The cubic root of 199104089 is about 583.9290206238.

The spelling of 199104089 in words is "one hundred ninety-nine million, one hundred four thousand, eighty-nine".