12648673 has 2 divisors, whose sum is σ = 12648674. Its totient is φ = 12648672.

The previous prime is 12648659. The next prime is 12648679. The reversal of 12648673 is 37684621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10316944 + 2331729 = 3212^2 + 1527^2 .

It is a cyclic number.

It is not a de Polignac number, because 12648673 - 2²¹ = 10551521 is a prime.

It is not a weakly prime, because it can be changed into another prime (12648679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324336 + 6324337.

It is an arithmetic number, because the mean of its divisors is an integer number (6324337).

Almost surely, 2^12648673 is an apocalyptic number.

It is an amenable number.

12648673 is a deficient number, since it is larger than the sum of its proper divisors (1).

12648673 is an equidigital number, since it uses as much as digits as its factorization.

12648673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 12648673 is about 3556.4972936866. The cubic root of 12648673 is about 232.9959229824.

The spelling of 12648673 in words is "twelve million, six hundred forty-eight thousand, six hundred seventy-three".