5605689 has 12 divisors (see below), whose sum is σ = 7631504. Its totient is φ = 3659304.

The previous prime is 5605687. The next prime is 5605697. The reversal of 5605689 is 9865065.

It is not a de Polignac number, because 5605689 - 2¹ = 5605687 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5605681) 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 11 ways as a sum of consecutive naturals, for example, 33484 + ... + 33650.

Almost surely, 2^5605689 is an apocalyptic number.

It is an amenable number.

5605689 is a deficient number, since it is larger than the sum of its proper divisors (2025815).

5605689 is an equidigital number, since it uses as much as digits as its factorization.

5605689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 5605689 is about 2367.6336287526. The cubic root of 5605689 is about 177.6409143522.

The spelling of 5605689 in words is "five million, six hundred five thousand, six hundred eighty-nine".