12977449 has 2 divisors, whose sum is σ = 12977450. Its totient is φ = 12977448.

The previous prime is 12977441. The next prime is 12977467. The reversal of 12977449 is 94477921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10036224 + 2941225 = 3168^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 12977449 - 2³ = 12977441 is a prime.

It is not a weakly prime, because it can be changed into another prime (12977441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6488724 + 6488725.

It is an arithmetic number, because the mean of its divisors is an integer number (6488725).

Almost surely, 2^12977449 is an apocalyptic number.

It is an amenable number.

12977449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12977449 is an equidigital number, since it uses as much as digits as its factorization.

12977449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 12977449 is about 3602.4226570462. The cubic root of 12977449 is about 234.9974286726.

The spelling of 12977449 in words is "twelve million, nine hundred seventy-seven thousand, four hundred forty-nine".