11816806 has 4 divisors (see below), whose sum is σ = 17725212. Its totient is φ = 5908402.

The previous prime is 11816773. The next prime is 11816821. The reversal of 11816806 is 60861811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60861811 = 1453 ⋅41887.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2954200 + ... + 2954203.

It is an arithmetic number, because the mean of its divisors is an integer number (4431303).

Almost surely, 2^11816806 is an apocalyptic number.

11816806 is a deficient number, since it is larger than the sum of its proper divisors (5908406).

11816806 is an equidigital number, since it uses as much as digits as its factorization.

11816806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908405.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 11816806 is about 3437.5581449628. The cubic root of 11816806 is about 227.7718426550.

The spelling of 11816806 in words is "eleven million, eight hundred sixteen thousand, eight hundred six".