12861846 has 24 divisors (see below), whose sum is σ = 28206360. Its totient is φ = 4235136.

The previous prime is 12861817. The next prime is 12861847. The reversal of 12861846 is 64816821.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12861846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12861847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2811 + ... + 5798.

It is an arithmetic number, because the mean of its divisors is an integer number (1175265).

Almost surely, 2^12861846 is an apocalyptic number.

12861846 is an abundant number, since it is smaller than the sum of its proper divisors (15344514).

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

12861846 is a wasteful number, since it uses less digits than its factorization.

12861846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700 (or 8697 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 12861846 is about 3586.3415899772. The cubic root of 12861846 is about 234.2975614034.

The spelling of 12861846 in words is "twelve million, eight hundred sixty-one thousand, eight hundred forty-six".