11820806 has 8 divisors (see below), whose sum is σ = 18342720. Its totient is φ = 5706568.

The previous prime is 11820803. The next prime is 11820839. The reversal of 11820806 is 60802811.

11820806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11820803) 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, 101846 + ... + 101961.

It is an arithmetic number, because the mean of its divisors is an integer number (2292840).

Almost surely, 2^11820806 is an apocalyptic number.

11820806 is a deficient number, since it is larger than the sum of its proper divisors (6521914).

11820806 is a wasteful number, since it uses less digits than its factorization.

11820806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203838.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 11820806 is about 3438.1399040760. The cubic root of 11820806 is about 227.7975400837.

The spelling of 11820806 in words is "eleven million, eight hundred twenty thousand, eight hundred six".