12023899 has 4 divisors (see below), whose sum is σ = 12134320. Its totient is φ = 11913480.

The previous prime is 12023881. The next prime is 12023909. The reversal of 12023899 is 99832021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12023899 - 2⁵ = 12023867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12023819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55047 + ... + 55264.

It is an arithmetic number, because the mean of its divisors is an integer number (3033580).

Almost surely, 2^12023899 is an apocalyptic number.

12023899 is a deficient number, since it is larger than the sum of its proper divisors (110421).

12023899 is a wasteful number, since it uses less digits than its factorization.

12023899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110420.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12023899 is about 3467.5494228634. The cubic root of 12023899 is about 229.0947339782.

The spelling of 12023899 in words is "twelve million, twenty-three thousand, eight hundred ninety-nine".