12851886 has 32 divisors (see below), whose sum is σ = 26345088. Its totient is φ = 4178720.

The previous prime is 12851851. The next prime is 12851897. The reversal of 12851886 is 68815821.

It is a congruent number.

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, 65140 + ... + 65336.

It is an arithmetic number, because the mean of its divisors is an integer number (823284).

Almost surely, 2^12851886 is an apocalyptic number.

12851886 is an abundant number, since it is smaller than the sum of its proper divisors (13493202).

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

12851886 is a wasteful number, since it uses less digits than its factorization.

12851886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its digits is 30720, while the sum is 39.

The square root of 12851886 is about 3584.9527193535. The cubic root of 12851886 is about 234.2370670716.

The spelling of 12851886 in words is "twelve million, eight hundred fifty-one thousand, eight hundred eighty-six".