8666199 has 6 divisors (see below), whose sum is σ = 12517856. Its totient is φ = 5777460.

The previous prime is 8666183. The next prime is 8666201. The reversal of 8666199 is 9916668.

8666199 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8666199 - 2⁴ = 8666183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 481447 + ... + 481464.

Almost surely, 2^8666199 is an apocalyptic number.

8666199 is a deficient number, since it is larger than the sum of its proper divisors (3851657).

8666199 is a wasteful number, since it uses less digits than its factorization.

8666199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962917 (or 962914 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 8666199 is about 2943.8408584704. The cubic root of 8666199 is about 205.4043101479.

The spelling of 8666199 in words is "eight million, six hundred sixty-six thousand, one hundred ninety-nine".