12866396 has 24 divisors (see below), whose sum is σ = 23061360. Its totient is φ = 6279552.

The previous prime is 12866393. The next prime is 12866423. The reversal of 12866396 is 69366821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12866393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40430 + ... + 40746.

It is an arithmetic number, because the mean of its divisors is an integer number (960890).

Almost surely, 2^12866396 is an apocalyptic number.

It is an amenable number.

12866396 is a deficient number, since it is larger than the sum of its proper divisors (10194964).

12866396 is a wasteful number, since it uses less digits than its factorization.

12866396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 531 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 12866396 is about 3586.9758850597. The cubic root of 12866396 is about 234.3251864742.

The spelling of 12866396 in words is "twelve million, eight hundred sixty-six thousand, three hundred ninety-six".