12287 has 4 divisors (see below), whose sum is σ = 13416. Its totient is φ = 11160.

The previous prime is 12281. The next prime is 12289. The reversal of 12287 is 78221.

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

It is a cyclic number.

It is not a de Polignac number, because 12287 - 2¹² = 8191 is a prime.

It is a Duffinian number.

It is a plaindrome in base 4, base 8, base 14 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548 + ... + 569.

It is an arithmetic number, because the mean of its divisors is an integer number (3354).

2¹²²⁸⁷ is an apocalyptic number.

12287 is a deficient number, since it is larger than the sum of its proper divisors (1129).

12287 is a wasteful number, since it uses less digits than its factorization.

12287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128.

The product of its digits is 224, while the sum is 20.

The square root of 12287 is about 110.8467410437. The cubic root of 12287 is about 23.0753671316.

The spelling of 12287 in words is "twelve thousand, two hundred eighty-seven".