12444407 has 2 divisors, whose sum is σ = 12444408. Its totient is φ = 12444406.

The previous prime is 12444389. The next prime is 12444413. The reversal of 12444407 is 70444421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12444407 - 2⁶ = 12444343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12444437) 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 as a sum of consecutive naturals, namely, 6222203 + 6222204.

It is an arithmetic number, because the mean of its divisors is an integer number (6222204).

Almost surely, 2^12444407 is an apocalyptic number.

12444407 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444407 is an equidigital number, since it uses as much as digits as its factorization.

12444407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 12444407 is about 3527.6631074977. The cubic root of 12444407 is about 231.7348772341.

Adding to 12444407 its reverse (70444421), we get a palindrome (82888828).

The spelling of 12444407 in words is "twelve million, four hundred forty-four thousand, four hundred seven".