11089985 has 8 divisors (see below), whose sum is σ = 13559400. Its totient is φ = 8704384.

The previous prime is 11089963. The next prime is 11089997. The reversal of 11089985 is 58998011.

It can be written as a sum of positive squares in 4 ways, for example, as 3713329 + 7376656 = 1927^2 + 2716^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11089985 - 2¹² = 11085889 is a prime.

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, 20660 + ... + 21189.

It is an arithmetic number, because the mean of its divisors is an integer number (1694925).

Almost surely, 2^11089985 is an apocalyptic number.

It is an amenable number.

11089985 is a deficient number, since it is larger than the sum of its proper divisors (2469415).

11089985 is an equidigital number, since it uses as much as digits as its factorization.

11089985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41907.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 11089985 is about 3330.1629089280. The cubic root of 11089985 is about 223.0028018175.

The spelling of 11089985 in words is "eleven million, eighty-nine thousand, nine hundred eighty-five".