12726673 has 2 divisors, whose sum is σ = 12726674. Its totient is φ = 12726672.

The previous prime is 12726643. The next prime is 12726689. The reversal of 12726673 is 37662721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9443329 + 3283344 = 3073^2 + 1812^2 .

It is an emirp because it is prime and its reverse (37662721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12726673 - 2⁵ = 12726641 is a prime.

It is not a weakly prime, because it can be changed into another prime (12726643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6363336 + 6363337.

It is an arithmetic number, because the mean of its divisors is an integer number (6363337).

Almost surely, 2^12726673 is an apocalyptic number.

It is an amenable number.

12726673 is a deficient number, since it is larger than the sum of its proper divisors (1).

12726673 is an equidigital number, since it uses as much as digits as its factorization.

12726673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 12726673 is about 3567.4462855101. The cubic root of 12726673 is about 233.4738770073.

The spelling of 12726673 in words is "twelve million, seven hundred twenty-six thousand, six hundred seventy-three".