12717769 has 2 divisors, whose sum is σ = 12717770. Its totient is φ = 12717768.

The previous prime is 12717763. The next prime is 12717773. The reversal of 12717769 is 96771721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 1926544 = 3285^2 + 1388^2 .

It is an emirp because it is prime and its reverse (96771721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12717769 - 2¹¹ = 12715721 is a prime.

It is a super-2 number, since 2×12717769² = 323483296674722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12717763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6358884 + 6358885.

It is an arithmetic number, because the mean of its divisors is an integer number (6358885).

Almost surely, 2^12717769 is an apocalyptic number.

It is an amenable number.

12717769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12717769 is an equidigital number, since it uses as much as digits as its factorization.

12717769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37044, while the sum is 40.

The square root of 12717769 is about 3566.1981156408. The cubic root of 12717769 is about 233.4194156305.

The spelling of 12717769 in words is "twelve million, seven hundred seventeen thousand, seven hundred sixty-nine".