12267887 has 2 divisors, whose sum is σ = 12267888. Its totient is φ = 12267886.

The previous prime is 12267883. The next prime is 12267889. The reversal of 12267887 is 78876221.

12267887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (78876221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12267887 - 2² = 12267883 is a prime.

Together with 12267889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12267883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6133943 + 6133944.

It is an arithmetic number, because the mean of its divisors is an integer number (6133944).

Almost surely, 2^12267887 is an apocalyptic number.

12267887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12267887 is an equidigital number, since it uses as much as digits as its factorization.

12267887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 41.

The square root of 12267887 is about 3502.5543536111. The cubic root of 12267887 is about 230.6339598657.

The spelling of 12267887 in words is "twelve million, two hundred sixty-seven thousand, eight hundred eighty-seven".