13006447 has 2 divisors, whose sum is σ = 13006448. Its totient is φ = 13006446.

The previous prime is 13006423. The next prime is 13006457. The reversal of 13006447 is 74460031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13006447 - 2²³ = 4617839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13006457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6503223 + 6503224.

It is an arithmetic number, because the mean of its divisors is an integer number (6503224).

Almost surely, 2^13006447 is an apocalyptic number.

13006447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13006447 is an equidigital number, since it uses as much as digits as its factorization.

13006447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 13006447 is about 3606.4452026892. The cubic root of 13006447 is about 235.1723317195.

Adding to 13006447 its reverse (74460031), we get a palindrome (87466478).

The spelling of 13006447 in words is "thirteen million, six thousand, four hundred forty-seven".