12867089 has 2 divisors, whose sum is σ = 12867090. Its totient is φ = 12867088.

The previous prime is 12867059. The next prime is 12867103. The reversal of 12867089 is 98076821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 1081600 = 3433^2 + 1040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12867089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12867059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6433544 + 6433545.

It is an arithmetic number, because the mean of its divisors is an integer number (6433545).

Almost surely, 2^12867089 is an apocalyptic number.

It is an amenable number.

12867089 is a deficient number, since it is larger than the sum of its proper divisors (1).

12867089 is an equidigital number, since it uses as much as digits as its factorization.

12867089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 12867089 is about 3587.0724832375. The cubic root of 12867089 is about 234.3293934135.

The spelling of 12867089 in words is "twelve million, eight hundred sixty-seven thousand, eighty-nine".