12764449 has 2 divisors, whose sum is σ = 12764450. Its totient is φ = 12764448.

The previous prime is 12764443. The next prime is 12764461. The reversal of 12764449 is 94446721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12552849 + 211600 = 3543^2 + 460^2 .

It is an emirp because it is prime and its reverse (94446721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12764449 - 2⁵ = 12764417 is a prime.

It is not a weakly prime, because it can be changed into another prime (12764443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6382224 + 6382225.

It is an arithmetic number, because the mean of its divisors is an integer number (6382225).

Almost surely, 2^12764449 is an apocalyptic number.

It is an amenable number.

12764449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12764449 is an equidigital number, since it uses as much as digits as its factorization.

12764449 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 12764449 is about 3572.7369060708. The cubic root of 12764449 is about 233.7046520931.

The spelling of 12764449 in words is "twelve million, seven hundred sixty-four thousand, four hundred forty-nine".