11104609 has 4 divisors (see below), whose sum is σ = 11111616. Its totient is φ = 11097604.

The previous prime is 11104591. The next prime is 11104627. The reversal of 11104609 is 90640111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90640111 = 47 ⋅1928513.

It is an interprime number because it is at equal distance from previous prime (11104591) and next prime (11104627).

It is a cyclic number.

It is not a de Polignac number, because 11104609 - 2²¹ = 9007457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11104609.

It is not an unprimeable number, because it can be changed into a prime (11104669) 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, 132 + ... + 4714.

It is an arithmetic number, because the mean of its divisors is an integer number (2777904).

Almost surely, 2^11104609 is an apocalyptic number.

It is an amenable number.

11104609 is a deficient number, since it is larger than the sum of its proper divisors (7007).

11104609 is an equidigital number, since it uses as much as digits as its factorization.

11104609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 11104609 is about 3332.3578739385. The cubic root of 11104609 is about 223.1007809265.

The spelling of 11104609 in words is "eleven million, one hundred four thousand, six hundred nine".