12489 has 8 divisors (see below), whose sum is σ = 17472. Its totient is φ = 7920.

The previous prime is 12487. The next prime is 12491. The reversal of 12489 is 98421.

12489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12487) and next prime (12491).

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

It is not a de Polignac number, because 12489 - 2¹ = 12487 is a prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22 + ... + 159.

It is an arithmetic number, because the mean of its divisors is an integer number (2184).

2¹²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

12489 is a deficient number, since it is larger than the sum of its proper divisors (4983).

12489 is a wasteful number, since it uses less digits than its factorization.

12489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207.

The product of its digits is 576, while the sum is 24.

The square root of 12489 is about 111.7541945522. The cubic root of 12489 is about 23.2011345065.

The spelling of 12489 in words is "twelve thousand, four hundred eighty-nine".