11169609 has 8 divisors (see below), whose sum is σ = 16246752. Its totient is φ = 6769440.

The previous prime is 11169563. The next prime is 11169617. The reversal of 11169609 is 90696111.

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

It is not a de Polignac number, because 11169609 - 2¹¹ = 11167561 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 338473 = 11169609 / (1 + 1 + 1 + 6 + 9 + 6 + 0 + 9).

It is a self number, because there is not a number n which added to its sum of digits gives 11169609.

It is not an unprimeable number, because it can be changed into a prime (11169619) 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 7 ways as a sum of consecutive naturals, for example, 169204 + ... + 169269.

It is an arithmetic number, because the mean of its divisors is an integer number (2030844).

Almost surely, 2^11169609 is an apocalyptic number.

It is an amenable number.

11169609 is a deficient number, since it is larger than the sum of its proper divisors (5077143).

11169609 is a wasteful number, since it uses less digits than its factorization.

11169609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338487.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 11169609 is about 3342.0964977092. The cubic root of 11169609 is about 223.5352356000.

The spelling of 11169609 in words is "eleven million, one hundred sixty-nine thousand, six hundred nine".