12860000 has 60 divisors (see below), whose sum is σ = 31686732. Its totient is φ = 5136000.

The previous prime is 12859997. The next prime is 12860033. The reversal of 12860000 is 6821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19679 + ... + 20321.

Almost surely, 2^12860000 is an apocalyptic number.

12860000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12860000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15843366).

12860000 is an abundant number, since it is smaller than the sum of its proper divisors (18826732).

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

12860000 is an frugal number, since it uses more digits than its factorization.

12860000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12860000 is about 3586.0842154082. The cubic root of 12860000 is about 234.2863516597.

Adding to 12860000 its reverse (6821), we get a palindrome (12866821).

The spelling of 12860000 in words is "twelve million, eight hundred sixty thousand".