5605439 has 16 divisors (see below), whose sum is σ = 6765120. Its totient is φ = 4542720.

The previous prime is 5605433. The next prime is 5605441. The reversal of 5605439 is 9345065.

It is a happy number.

It is not a de Polignac number, because 5605439 - 2⁴ = 5605423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10499 + ... + 11019.

It is an arithmetic number, because the mean of its divisors is an integer number (422820).

Almost surely, 2^5605439 is an apocalyptic number.

5605439 is a deficient number, since it is larger than the sum of its proper divisors (1159681).

5605439 is a wasteful number, since it uses less digits than its factorization.

5605439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 5605439 is about 2367.5808328334. The cubic root of 5605439 is about 177.6382735297.

The spelling of 5605439 in words is "five million, six hundred five thousand, four hundred thirty-nine".