12406769 has 2 divisors, whose sum is σ = 12406770. Its totient is φ = 12406768.

The previous prime is 12406763. The next prime is 12406777. The reversal of 12406769 is 96760421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 4566769 = 2800^2 + 2137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12406769 is a prime.

It is a super-2 number, since 2×12406769² = 307855834038722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12406763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6203384 + 6203385.

It is an arithmetic number, because the mean of its divisors is an integer number (6203385).

Almost surely, 2^12406769 is an apocalyptic number.

It is an amenable number.

12406769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12406769 is an equidigital number, since it uses as much as digits as its factorization.

12406769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 12406769 is about 3522.3243746140. The cubic root of 12406769 is about 231.5010146012.

The spelling of 12406769 in words is "twelve million, four hundred six thousand, seven hundred sixty-nine".