11085905 has 4 divisors (see below), whose sum is σ = 13303092. Its totient is φ = 8868720.

The previous prime is 11085889. The next prime is 11085947. The reversal of 11085905 is 50958011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1697809 + 9388096 = 1303^2 + 3064^2 .

It is not a de Polignac number, because 11085905 - 2⁴ = 11085889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108586 + ... + 1108595.

It is an arithmetic number, because the mean of its divisors is an integer number (3325773).

Almost surely, 2^11085905 is an apocalyptic number.

It is an amenable number.

11085905 is a deficient number, since it is larger than the sum of its proper divisors (2217187).

11085905 is an equidigital number, since it uses as much as digits as its factorization.

11085905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217186.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 11085905 is about 3329.5502699314. The cubic root of 11085905 is about 222.9754509229.

The spelling of 11085905 in words is "eleven million, eighty-five thousand, nine hundred five".