12306849 has 4 divisors (see below), whose sum is σ = 16409136. Its totient is φ = 8204564.

The previous prime is 12306839. The next prime is 12306859. The reversal of 12306849 is 94860321.

12306849 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94860321 = 3 ⋅31620107.

It is an interprime number because it is at equal distance from previous prime (12306839) and next prime (12306859).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12306849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12306839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051139 + ... + 2051144.

It is an arithmetic number, because the mean of its divisors is an integer number (4102284).

Almost surely, 2^12306849 is an apocalyptic number.

It is an amenable number.

12306849 is a deficient number, since it is larger than the sum of its proper divisors (4102287).

12306849 is an equidigital number, since it uses as much as digits as its factorization.

12306849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102286.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12306849 is about 3508.1118853309. Note that the first 3 decimals coincide. The cubic root of 12306849 is about 230.8778612578.

The spelling of 12306849 in words is "twelve million, three hundred six thousand, eight hundred forty-nine".