11081685 has 32 divisors (see below), whose sum is σ = 18692352. Its totient is φ = 5598720.

The previous prime is 11081647. The next prime is 11081689. The reversal of 11081685 is 58618011.

It is a happy number.

It is not a de Polignac number, because 11081685 - 2⁶ = 11081621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11081689) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 22512 + ... + 22998.

It is an arithmetic number, because the mean of its divisors is an integer number (584136).

Almost surely, 2^11081685 is an apocalyptic number.

11081685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11081685 is a deficient number, since it is larger than the sum of its proper divisors (7610667).

11081685 is a wasteful number, since it uses less digits than its factorization.

11081685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 11081685 is about 3328.9164903914. The cubic root of 11081685 is about 222.9471544562.

Adding to 11081685 its reverse (58618011), we get a palindrome (69699696).

The spelling of 11081685 in words is "eleven million, eighty-one thousand, six hundred eighty-five".