12011886 has 24 divisors (see below), whose sum is σ = 26221104. Its totient is φ = 3973920.

The previous prime is 12011873. The next prime is 12011903. The reversal of 12011886 is 68811021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (1092546).

Almost surely, 2^12011886 is an apocalyptic number.

12011886 is an abundant number, since it is smaller than the sum of its proper divisors (14209218).

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

12011886 is a wasteful number, since it uses less digits than its factorization.

12011886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5013 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 12011886 is about 3465.8167868484. The cubic root of 12011886 is about 229.0184128645.

The spelling of 12011886 in words is "twelve million, eleven thousand, eight hundred eighty-six".