12584921 has 8 divisors (see below), whose sum is σ = 13023360. Its totient is φ = 12151728.

The previous prime is 12584911. The next prime is 12584983. The reversal of 12584921 is 12948521.

12584921 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 12584921 - 2¹⁰ = 12583897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12584911) 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, 3920 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (1627920).

Almost surely, 2^12584921 is an apocalyptic number.

It is an amenable number.

12584921 is a deficient number, since it is larger than the sum of its proper divisors (438439).

12584921 is a wasteful number, since it uses less digits than its factorization.

12584921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623.

The product of its digits is 5760, while the sum is 32.

The square root of 12584921 is about 3547.5232205019. The cubic root of 12584921 is about 232.6038138156.

The spelling of 12584921 in words is "twelve million, five hundred eighty-four thousand, nine hundred twenty-one".