12866493 has 12 divisors (see below), whose sum is σ = 17447360. Its totient is φ = 8432736.

The previous prime is 12866473. The next prime is 12866537. The reversal of 12866493 is 39466821.

12866493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12866493 - 2⁵ = 12866461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12866423) 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 11 ways as a sum of consecutive naturals, for example, 55105 + ... + 55337.

Almost surely, 2^12866493 is an apocalyptic number.

It is an amenable number.

12866493 is a deficient number, since it is larger than the sum of its proper divisors (4580867).

12866493 is an frugal number, since it uses more digits than its factorization.

12866493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 315 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 12866493 is about 3586.9894061734. The cubic root of 12866493 is about 234.3257753334.

The spelling of 12866493 in words is "twelve million, eight hundred sixty-six thousand, four hundred ninety-three".