5609646 has 36 divisors (see below), whose sum is σ = 13956696. Its totient is φ = 1595160.

The previous prime is 5609633. The next prime is 5609647. The reversal of 5609646 is 6469065.

It is a happy number.

5609646 is a `hidden beast` number, since 5 + 6 + 0 + 9 + 646 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5609646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5609647) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26481 + ... + 26691.

It is an arithmetic number, because the mean of its divisors is an integer number (387686).

Almost surely, 2^5609646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5609646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6978348).

5609646 is an abundant number, since it is smaller than the sum of its proper divisors (8347050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5609646 is a wasteful number, since it uses less digits than its factorization.

5609646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 5609646 is about 2368.4691258279. The cubic root of 5609646 is about 177.6827028381.

The spelling of 5609646 in words is "five million, six hundred nine thousand, six hundred forty-six".