11806211 has 4 divisors (see below), whose sum is σ = 12500712. Its totient is φ = 11111712.

The previous prime is 11806189. The next prime is 11806231. The reversal of 11806211 is 11260811.

11806211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11260811 = 479 ⋅23509.

It is a cyclic number.

It is not a de Polignac number, because 11806211 - 2⁶ = 11806147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11806231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347225 + ... + 347258.

It is an arithmetic number, because the mean of its divisors is an integer number (3125178).

Almost surely, 2^11806211 is an apocalyptic number.

11806211 is a deficient number, since it is larger than the sum of its proper divisors (694501).

11806211 is an equidigital number, since it uses as much as digits as its factorization.

11806211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694500.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 11806211 is about 3436.0167345343. The cubic root of 11806211 is about 227.7037485559.

The spelling of 11806211 in words is "eleven million, eight hundred six thousand, two hundred eleven".