12383821 has 8 divisors (see below), whose sum is σ = 13167360. Its totient is φ = 11620752.

The previous prime is 12383779. The next prime is 12383827. The reversal of 12383821 is 12838321.

12383821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12383821 - 2⁹ = 12383309 is a prime.

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 12383821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12383827) 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, 3861 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (1645920).

Almost surely, 2^12383821 is an apocalyptic number.

It is an amenable number.

12383821 is a deficient number, since it is larger than the sum of its proper divisors (783539).

12383821 is a wasteful number, since it uses less digits than its factorization.

12383821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235.

The product of its digits is 2304, while the sum is 28.

The square root of 12383821 is about 3519.0653588702. The cubic root of 12383821 is about 231.3581956814.

The spelling of 12383821 in words is "twelve million, three hundred eighty-three thousand, eight hundred twenty-one".