12800886 has 32 divisors (see below), whose sum is σ = 29702400. Its totient is φ = 3602016.

The previous prime is 12800849. The next prime is 12800891. The reversal of 12800886 is 68800821.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 540 + ... + 5088.

It is an arithmetic number, because the mean of its divisors is an integer number (928200).

Almost surely, 2^12800886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12800886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14851200).

12800886 is an abundant number, since it is smaller than the sum of its proper divisors (16901514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12800886 is a wasteful number, since it uses less digits than its factorization.

12800886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 12800886 is about 3577.8325841213. The cubic root of 12800886 is about 233.9268161819.

The spelling of 12800886 in words is "twelve million, eight hundred thousand, eight hundred eighty-six".