199432799 has 8 divisors (see below), whose sum is σ = 204802560. Its totient is φ = 194122656.

The previous prime is 199432781. The next prime is 199432819. The reversal of 199432799 is 997234991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199432799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199432799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199432099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8084 + ... + 21545.

It is an arithmetic number, because the mean of its divisors is an integer number (25600320).

Almost surely, 2^199432799 is an apocalyptic number.

199432799 is a deficient number, since it is larger than the sum of its proper divisors (5369761).

199432799 is a wasteful number, since it uses less digits than its factorization.

199432799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29809.

The product of its digits is 1102248, while the sum is 53.

The square root of 199432799 is about 14122.0678018483. The cubic root of 199432799 is about 584.2501889414.

The spelling of 199432799 in words is "one hundred ninety-nine million, four hundred thirty-two thousand, seven hundred ninety-nine".