12756673 has 2 divisors, whose sum is σ = 12756674. Its totient is φ = 12756672.

The previous prime is 12756661. The next prime is 12756691. The reversal of 12756673 is 37665721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7969329 + 4787344 = 2823^2 + 2188^2 .

It is a cyclic number.

It is not a de Polignac number, because 12756673 - 2¹³ = 12748481 is a prime.

It is not a weakly prime, because it can be changed into another prime (12756173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6378336 + 6378337.

It is an arithmetic number, because the mean of its divisors is an integer number (6378337).

Almost surely, 2^12756673 is an apocalyptic number.

It is an amenable number.

12756673 is a deficient number, since it is larger than the sum of its proper divisors (1).

12756673 is an equidigital number, since it uses as much as digits as its factorization.

12756673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 37.

The square root of 12756673 is about 3571.6484989428. The cubic root of 12756673 is about 233.6571854529.

The spelling of 12756673 in words is "twelve million, seven hundred fifty-six thousand, six hundred seventy-three".