12287339 has 4 divisors (see below), whose sum is σ = 12294360. Its totient is φ = 12280320.

The previous prime is 12287333. The next prime is 12287347. The reversal of 12287339 is 93378221.

12287339 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 brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12287339 - 2²⁰ = 11238763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12287299 and 12287308.

It is not an unprimeable number, because it can be changed into a prime (12287333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484 + ... + 5174.

It is an arithmetic number, because the mean of its divisors is an integer number (3073590).

Almost surely, 2^12287339 is an apocalyptic number.

12287339 is a deficient number, since it is larger than the sum of its proper divisors (7021).

12287339 is an equidigital number, since it uses as much as digits as its factorization.

12287339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020.

The product of its digits is 18144, while the sum is 35.

The square root of 12287339 is about 3505.3300843145. The cubic root of 12287339 is about 230.7557934711.

The spelling of 12287339 in words is "twelve million, two hundred eighty-seven thousand, three hundred thirty-nine".