12886533 has 28 divisors (see below), whose sum is σ = 21090528. Its totient is φ = 7805160.

The previous prime is 12886499. The next prime is 12886553. The reversal of 12886533 is 33568821.

It is not a de Polignac number, because 12886533 - 2⁸ = 12886277 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12886553) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7216 + ... + 8822.

Almost surely, 2^12886533 is an apocalyptic number.

It is an amenable number.

12886533 is a deficient number, since it is larger than the sum of its proper divisors (8203995).

12886533 is an equidigital number, since it uses as much as digits as its factorization.

12886533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636 (or 1621 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 12886533 is about 3589.7817482404. The cubic root of 12886533 is about 234.4473690120.

The spelling of 12886533 in words is "twelve million, eight hundred eighty-six thousand, five hundred thirty-three".