11004609 has 16 divisors (see below), whose sum is σ = 18293760. Its totient is φ = 5716560.

The previous prime is 11004589. The next prime is 11004611. The reversal of 11004609 is 90640011.

It is not a de Polignac number, because 11004609 - 2¹¹ = 11002561 is a prime.

It is a super-2 number, since 2×11004609² = 242202838485762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11004109) 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 15 ways as a sum of consecutive naturals, for example, 23589 + ... + 24050.

It is an arithmetic number, because the mean of its divisors is an integer number (1143360).

Almost surely, 2^11004609 is an apocalyptic number.

It is an amenable number.

11004609 is a deficient number, since it is larger than the sum of its proper divisors (7289151).

11004609 is a wasteful number, since it uses less digits than its factorization.

11004609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47660.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 11004609 is about 3317.3195504805. The cubic root of 11004609 is about 222.4290663083.

The spelling of 11004609 in words is "eleven million, four thousand, six hundred nine".