12086811 has 24 divisors (see below), whose sum is σ = 19222320. Its totient is φ = 7318080.

The previous prime is 12086803. The next prime is 12086821. The reversal of 12086811 is 11868021.

It is not a de Polignac number, because 12086811 - 2³ = 12086803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12086801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11475 + ... + 12483.

It is an arithmetic number, because the mean of its divisors is an integer number (800930).

Almost surely, 2^12086811 is an apocalyptic number.

12086811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12086811 is a deficient number, since it is larger than the sum of its proper divisors (7135509).

12086811 is a wasteful number, since it uses less digits than its factorization.

12086811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1023 counting only the distinct ones).

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

The square root of 12086811 is about 3476.6091238447. The cubic root of 12086811 is about 229.4935991494.

The spelling of 12086811 in words is "twelve million, eighty-six thousand, eight hundred eleven".