12199989 has 8 divisors (see below), whose sum is σ = 16284352. Its totient is φ = 8124480.

The previous prime is 12199969. The next prime is 12199991. The reversal of 12199989 is 98999121.

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

It is not a de Polignac number, because 12199989 - 2⁷ = 12199861 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 (12199909) 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 7 ways as a sum of consecutive naturals, for example, 2349 + ... + 5469.

It is an arithmetic number, because the mean of its divisors is an integer number (2035544).

Almost surely, 2^12199989 is an apocalyptic number.

It is an amenable number.

12199989 is a deficient number, since it is larger than the sum of its proper divisors (4084363).

12199989 is a wasteful number, since it uses less digits than its factorization.

12199989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427.

The product of its digits is 104976, while the sum is 48.

The square root of 12199989 is about 3492.8482646688. The cubic root of 12199989 is about 230.2076826082.

The spelling of 12199989 in words is "twelve million, one hundred ninety-nine thousand, nine hundred eighty-nine".