5605609 has 4 divisors (see below), whose sum is σ = 5736016. Its totient is φ = 5475204.

The previous prime is 5605559. The next prime is 5605619. The reversal of 5605609 is 9065065.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 5605609 - 2²¹ = 3508457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5605619) 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, 65139 + ... + 65224.

It is an arithmetic number, because the mean of its divisors is an integer number (1434004).

Almost surely, 2^5605609 is an apocalyptic number.

It is an amenable number.

5605609 is a deficient number, since it is larger than the sum of its proper divisors (130407).

5605609 is a wasteful number, since it uses less digits than its factorization.

5605609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130406.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 5605609 is about 2367.6167341865. The cubic root of 5605609 is about 177.6400692975.

The spelling of 5605609 in words is "five million, six hundred five thousand, six hundred nine".