12644207 has 2 divisors, whose sum is σ = 12644208. Its totient is φ = 12644206.

The previous prime is 12644201. The next prime is 12644213. The reversal of 12644207 is 70244621.

It is a balanced prime because it is at equal distance from previous prime (12644201) and next prime (12644213).

It is an emirp because it is prime and its reverse (70244621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12644207 - 2¹⁸ = 12382063 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 (12644201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322103 + 6322104.

It is an arithmetic number, because the mean of its divisors is an integer number (6322104).

Almost surely, 2^12644207 is an apocalyptic number.

12644207 is a deficient number, since it is larger than the sum of its proper divisors (1).

12644207 is an equidigital number, since it uses as much as digits as its factorization.

12644207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 12644207 is about 3555.8693733038. The cubic root of 12644207 is about 232.9684976474.

Adding to 12644207 its reverse (70244621), we get a palindrome (82888828).

The spelling of 12644207 in words is "twelve million, six hundred forty-four thousand, two hundred seven".