12873868 has 36 divisors (see below), whose sum is σ = 27594840. Its totient is φ = 5225472.

The previous prime is 12873857. The next prime is 12873869. The reversal of 12873868 is 86837821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12873869) 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, 1996 + ... + 5452.

Almost surely, 2^12873868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12873868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13797420).

12873868 is an abundant number, since it is smaller than the sum of its proper divisors (14720972).

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

12873868 is a wasteful number, since it uses less digits than its factorization.

12873868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494 (or 3485 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 12873868 is about 3588.0172797800. The cubic root of 12873868 is about 234.3705381788.

The spelling of 12873868 in words is "twelve million, eight hundred seventy-three thousand, eight hundred sixty-eight".