12679769 has 2 divisors, whose sum is σ = 12679770. Its totient is φ = 12679768.

The previous prime is 12679759. The next prime is 12679811. The reversal of 12679769 is 96797621.

12679769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9486400 + 3193369 = 3080^2 + 1787^2 .

It is a cyclic number.

It is not a de Polignac number, because 12679769 - 2⁴ = 12679753 is a prime.

It is a super-2 number, since 2×12679769² = 321553083786722, 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 (12679729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6339884 + 6339885.

It is an arithmetic number, because the mean of its divisors is an integer number (6339885).

Almost surely, 2^12679769 is an apocalyptic number.

It is an amenable number.

12679769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12679769 is an equidigital number, since it uses as much as digits as its factorization.

12679769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The square root of 12679769 is about 3560.8663271738. The cubic root of 12679769 is about 233.1867022046.

The spelling of 12679769 in words is "twelve million, six hundred seventy-nine thousand, seven hundred sixty-nine".