12207439 has 2 divisors, whose sum is σ = 12207440. Its totient is φ = 12207438.

The previous prime is 12207431. The next prime is 12207473. The reversal of 12207439 is 93470221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12207439 - 2³ = 12207431 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12207431) 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, 6103719 + 6103720.

It is an arithmetic number, because the mean of its divisors is an integer number (6103720).

Almost surely, 2^12207439 is an apocalyptic number.

12207439 is a deficient number, since it is larger than the sum of its proper divisors (1).

12207439 is an equidigital number, since it uses as much as digits as its factorization.

12207439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 12207439 is about 3493.9145667861. The cubic root of 12207439 is about 230.2545323294.

The spelling of 12207439 in words is "twelve million, two hundred seven thousand, four hundred thirty-nine".