11305686 has 16 divisors (see below), whose sum is σ = 25841664. Its totient is φ = 3230184.

The previous prime is 11305681. The next prime is 11305717. The reversal of 11305686 is 68650311.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11305681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134550 + ... + 134633.

It is an arithmetic number, because the mean of its divisors is an integer number (1615104).

Almost surely, 2^11305686 is an apocalyptic number.

11305686 is an abundant number, since it is smaller than the sum of its proper divisors (14535978).

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

11305686 is a wasteful number, since it uses less digits than its factorization.

11305686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269195.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 11305686 is about 3362.3928979225. The cubic root of 11305686 is about 224.4393349343.

Adding to 11305686 its reverse (68650311), we get a palindrome (79955997).

The spelling of 11305686 in words is "eleven million, three hundred five thousand, six hundred eighty-six".