12667 has 4 divisors (see below), whose sum is σ = 12960. Its totient is φ = 12376.

The previous prime is 12659. The next prime is 12671. The reversal of 12667 is 76621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76621 = 193 ⋅397.

It is a cyclic number.

It is not a de Polignac number, because 12667 - 2³ = 12659 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 10 and base 14.

It is not an unprimeable number, because it can be changed into a prime (12637) 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, 67 + ... + 172.

It is an arithmetic number, because the mean of its divisors is an integer number (3240).

2¹²⁶⁶⁷ is an apocalyptic number.

12667 is a deficient number, since it is larger than the sum of its proper divisors (293).

12667 is an equidigital number, since it uses as much as digits as its factorization.

12667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292.

The product of its digits is 504, while the sum is 22.

The square root of 12667 is about 112.5477676367. The cubic root of 12667 is about 23.3108400014.

The spelling of 12667 in words is "twelve thousand, six hundred sixty-seven".