12989653 has 2 divisors, whose sum is σ = 12989654. Its totient is φ = 12989652.

The previous prime is 12989629. The next prime is 12989657. The reversal of 12989653 is 35698921.

It is a happy number.

12989653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10355524 + 2634129 = 3218^2 + 1623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12989653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12989657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6494826 + 6494827.

It is an arithmetic number, because the mean of its divisors is an integer number (6494827).

Almost surely, 2^12989653 is an apocalyptic number.

It is an amenable number.

12989653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12989653 is an equidigital number, since it uses as much as digits as its factorization.

12989653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 12989653 is about 3604.1161191060. The cubic root of 12989653 is about 235.0710694962.

The spelling of 12989653 in words is "twelve million, nine hundred eighty-nine thousand, six hundred fifty-three".