11689105 has 4 divisors (see below), whose sum is σ = 14026932. Its totient is φ = 9351280.

The previous prime is 11689103. The next prime is 11689109. The reversal of 11689105 is 50198611.

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 1979649 + 9709456 = 1407^2 + 3116^2 .

It is not a de Polignac number, because 11689105 - 2¹ = 11689103 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11689103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168906 + ... + 1168915.

It is an arithmetic number, because the mean of its divisors is an integer number (3506733).

Almost surely, 2^11689105 is an apocalyptic number.

It is an amenable number.

11689105 is a deficient number, since it is larger than the sum of its proper divisors (2337827).

11689105 is an equidigital number, since it uses as much as digits as its factorization.

11689105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337826.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 11689105 is about 3418.9333131841. The cubic root of 11689105 is about 226.9483797830.

The spelling of 11689105 in words is "eleven million, six hundred eighty-nine thousand, one hundred five".