12884555 has 16 divisors (see below), whose sum is σ = 16938720. Its totient is φ = 9364992.

The previous prime is 12884549. The next prime is 12884567. The reversal of 12884555 is 55548821.

It is a cyclic number.

It is not a de Polignac number, because 12884555 - 2²⁰ = 11835979 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 149 + ... + 5078.

It is an arithmetic number, because the mean of its divisors is an integer number (1058670).

Almost surely, 2^12884555 is an apocalyptic number.

12884555 is a deficient number, since it is larger than the sum of its proper divisors (4054165).

12884555 is a wasteful number, since it uses less digits than its factorization.

12884555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278.

The product of its digits is 64000, while the sum is 38.

The square root of 12884555 is about 3589.5062334533. The cubic root of 12884555 is about 234.4353730101.

The spelling of 12884555 in words is "twelve million, eight hundred eighty-four thousand, five hundred fifty-five".