11091806 has 16 divisors (see below), whose sum is σ = 18264960. Its totient is φ = 5009880.

The previous prime is 11091793. The next prime is 11091811. The reversal of 11091806 is 60819011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2165 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (1141560).

Almost surely, 2^11091806 is an apocalyptic number.

11091806 is a deficient number, since it is larger than the sum of its proper divisors (7173154).

11091806 is a wasteful number, since it uses less digits than its factorization.

11091806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 11091806 is about 3330.4363077531. The cubic root of 11091806 is about 223.0150070001.

The spelling of 11091806 in words is "eleven million, ninety-one thousand, eight hundred six".