12967289 has 4 divisors (see below), whose sum is σ = 13095780. Its totient is φ = 12838800.

The previous prime is 12967261. The next prime is 12967303. The reversal of 12967289 is 98276921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12709225 + 258064 = 3565^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 12967289 - 2¹⁶ = 12901753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12967219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64094 + ... + 64295.

It is an arithmetic number, because the mean of its divisors is an integer number (3273945).

Almost surely, 2^12967289 is an apocalyptic number.

It is an amenable number.

12967289 is a deficient number, since it is larger than the sum of its proper divisors (128491).

12967289 is a wasteful number, since it uses less digits than its factorization.

12967289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128490.

The product of its digits is 108864, while the sum is 44.

The square root of 12967289 is about 3601.0122188074. The cubic root of 12967289 is about 234.9360864366.

The spelling of 12967289 in words is "twelve million, nine hundred sixty-seven thousand, two hundred eighty-nine".