12287867 has 8 divisors (see below), whose sum is σ = 12539472. Its totient is φ = 12038400.

The previous prime is 12287861. The next prime is 12287879. The reversal of 12287867 is 76878221.

12287867 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12287867 - 2¹⁰ = 12286843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12287861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15767 + ... + 16527.

It is an arithmetic number, because the mean of its divisors is an integer number (1567434).

Almost surely, 2^12287867 is an apocalyptic number.

12287867 is a deficient number, since it is larger than the sum of its proper divisors (251605).

12287867 is an equidigital number, since it uses as much as digits as its factorization.

12287867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069.

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

The square root of 12287867 is about 3505.4053973827. The cubic root of 12287867 is about 230.7590986976.

The spelling of 12287867 in words is "twelve million, two hundred eighty-seven thousand, eight hundred sixty-seven".