12716989 has 2 divisors, whose sum is σ = 12716990. Its totient is φ = 12716988.

The previous prime is 12716983. The next prime is 12717007. The reversal of 12716989 is 98961721.

12716989 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., 11799225 + 917764 = 3435^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 12716989 - 2³ = 12716981 is a prime.

It is a super-2 number, since 2×12716989² = 323443618452242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12716981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6358494 + 6358495.

It is an arithmetic number, because the mean of its divisors is an integer number (6358495).

Almost surely, 2^12716989 is an apocalyptic number.

It is an amenable number.

12716989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12716989 is an equidigital number, since it uses as much as digits as its factorization.

12716989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 43.

The square root of 12716989 is about 3566.0887538030. The cubic root of 12716989 is about 233.4146435444.

The spelling of 12716989 in words is "twelve million, seven hundred sixteen thousand, nine hundred eighty-nine".