12860891 has 16 divisors (see below), whose sum is σ = 14839200. Its totient is φ = 11063808.

The previous prime is 12860873. The next prime is 12860893. The reversal of 12860891 is 19806821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12860891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12860893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8681 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (927450).

Almost surely, 2^12860891 is an apocalyptic number.

12860891 is a deficient number, since it is larger than the sum of its proper divisors (1978309).

12860891 is a wasteful number, since it uses less digits than its factorization.

12860891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 12860891 is about 3586.2084434678. The cubic root of 12860891 is about 234.2917623471.

The spelling of 12860891 in words is "twelve million, eight hundred sixty thousand, eight hundred ninety-one".