11209086 has 48 divisors (see below), whose sum is σ = 29394144. Its totient is φ = 3013632.

The previous prime is 11209063. The next prime is 11209097. The reversal of 11209086 is 68090211.

It is a Curzon 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 in 23 ways as a sum of consecutive naturals, for example, 475 + ... + 4758.

It is an arithmetic number, because the mean of its divisors is an integer number (612378).

Almost surely, 2^11209086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11209086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14697072).

11209086 is an abundant number, since it is smaller than the sum of its proper divisors (18185058).

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

11209086 is a wasteful number, since it uses less digits than its factorization.

11209086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265 (or 5262 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11209086 is about 3347.9973118269. The cubic root of 11209086 is about 223.7982744897.

Adding to 11209086 its reverse (68090211), we get a palindrome (79299297).

The spelling of 11209086 in words is "eleven million, two hundred nine thousand, eighty-six".