12736447 has 2 divisors, whose sum is σ = 12736448. Its totient is φ = 12736446.

The previous prime is 12736429. The next prime is 12736487. The reversal of 12736447 is 74463721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12736447 - 2¹¹ = 12734399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12736487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6368223 + 6368224.

It is an arithmetic number, because the mean of its divisors is an integer number (6368224).

Almost surely, 2^12736447 is an apocalyptic number.

12736447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12736447 is an equidigital number, since it uses as much as digits as its factorization.

12736447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 34.

The square root of 12736447 is about 3568.8159100744. The cubic root of 12736447 is about 233.5336305067.

The spelling of 12736447 in words is "twelve million, seven hundred thirty-six thousand, four hundred forty-seven".