199289697 has 8 divisors (see below), whose sum is σ = 265967520. Its totient is φ = 132735840.

The previous prime is 199289683. The next prime is 199289737. The reversal of 199289697 is 796982991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199289697 - 2⁴ = 199289681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199289697.

It is not an unprimeable number, because it can be changed into a prime (199289627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27172 + ... + 33717.

It is an arithmetic number, because the mean of its divisors is an integer number (33245940).

Almost surely, 2^199289697 is an apocalyptic number.

It is an amenable number.

199289697 is a deficient number, since it is larger than the sum of its proper divisors (66677823).

199289697 is a wasteful number, since it uses less digits than its factorization.

199289697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61983.

The product of its digits is 4408992, while the sum is 60.

The square root of 199289697 is about 14117.0002833463. Note that the first 3 decimals coincide. The cubic root of 199289697 is about 584.1104135780.

The spelling of 199289697 in words is "one hundred ninety-nine million, two hundred eighty-nine thousand, six hundred ninety-seven".