12339449 has 2 divisors, whose sum is σ = 12339450. Its totient is φ = 12339448.

The previous prime is 12339419. The next prime is 12339451. The reversal of 12339449 is 94493321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7118224 + 5221225 = 2668^2 + 2285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12339449 is a prime.

Together with 12339451, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₈₀₈₈₄₇ and since 12339449 and 808847 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12339419) 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 as a sum of consecutive naturals, namely, 6169724 + 6169725.

It is an arithmetic number, because the mean of its divisors is an integer number (6169725).

Almost surely, 2^12339449 is an apocalyptic number.

It is an amenable number.

12339449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12339449 is an equidigital number, since it uses as much as digits as its factorization.

12339449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 12339449 is about 3512.7551864598. The cubic root of 12339449 is about 231.0815413985.

The spelling of 12339449 in words is "twelve million, three hundred thirty-nine thousand, four hundred forty-nine".