12888605 has 16 divisors (see below), whose sum is σ = 15970944. Its totient is φ = 9979200.

The previous prime is 12888583. The next prime is 12888607. The reversal of 12888605 is 50688821.

It is not a de Polignac number, because 12888605 - 2²⁰ = 11840029 is a prime.

It is a super-2 number, since 2×12888605² = 332232277692050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888607) 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 15 ways as a sum of consecutive naturals, for example, 32267 + ... + 32663.

It is an arithmetic number, because the mean of its divisors is an integer number (998184).

Almost surely, 2^12888605 is an apocalyptic number.

It is an amenable number.

12888605 is a deficient number, since it is larger than the sum of its proper divisors (3082339).

12888605 is a wasteful number, since it uses less digits than its factorization.

12888605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 12888605 is about 3590.0703335729. The cubic root of 12888605 is about 234.4599337806.

The spelling of 12888605 in words is "twelve million, eight hundred eighty-eight thousand, six hundred five".