199892017 has 12 divisors (see below), whose sum is σ = 217305180. Its totient is φ = 183787968.

The previous prime is 199892009. The next prime is 199892023. The reversal of 199892017 is 710298991.

It is a happy number.

199892017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 75881521 + 124010496 = 8711^2 + 11136^2 .

It is not a de Polignac number, because 199892017 - 2³ = 199892009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199892047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43263 + ... + 47659.

It is an arithmetic number, because the mean of its divisors is an integer number (18108765).

Almost surely, 2^199892017 is an apocalyptic number.

It is an amenable number.

199892017 is a deficient number, since it is larger than the sum of its proper divisors (17413163).

199892017 is a wasteful number, since it uses less digits than its factorization.

199892017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692 (or 4679 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 199892017 is about 14138.3173326956. The cubic root of 199892017 is about 584.6982806261.

The spelling of 199892017 in words is "one hundred ninety-nine million, eight hundred ninety-two thousand, seventeen".