12944977 has 2 divisors, whose sum is σ = 12944978. Its totient is φ = 12944976.

The previous prime is 12944963. The next prime is 12944999. The reversal of 12944977 is 77944921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11296321 + 1648656 = 3361^2 + 1284^2 .

It is an emirp because it is prime and its reverse (77944921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12944977 - 2¹¹ = 12942929 is a prime.

It is not a weakly prime, because it can be changed into another prime (12944177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472488 + 6472489.

It is an arithmetic number, because the mean of its divisors is an integer number (6472489).

Almost surely, 2^12944977 is an apocalyptic number.

It is an amenable number.

12944977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12944977 is an equidigital number, since it uses as much as digits as its factorization.

12944977 is an evil number, because the sum of its binary digits is even.

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

The square root of 12944977 is about 3597.9128672051. The cubic root of 12944977 is about 234.8012624883.

The spelling of 12944977 in words is "twelve million, nine hundred forty-four thousand, nine hundred seventy-seven".