5609989 has 16 divisors (see below), whose sum is σ = 7168896. Its totient is φ = 4262400.

The previous prime is 5609957. The next prime is 5609993. The reversal of 5609989 is 9899065.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5609989 - 2⁵ = 5609957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5609939) 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, 2269 + ... + 4045.

It is an arithmetic number, because the mean of its divisors is an integer number (448056).

Almost surely, 2^5609989 is an apocalyptic number.

It is an amenable number.

5609989 is a deficient number, since it is larger than the sum of its proper divisors (1558907).

5609989 is a wasteful number, since it uses less digits than its factorization.

5609989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 5609989 is about 2368.5415343624. The cubic root of 5609989 is about 177.6863242148.

The spelling of 5609989 in words is "five million, six hundred nine thousand, nine hundred eighty-nine".