5646656 has 28 divisors (see below), whose sum is σ = 11350752. Its totient is φ = 2786688.

The previous prime is 5646649. The next prime is 5646659. The reversal of 5646656 is 6566465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5646659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4781 + ... + 5843.

It is an arithmetic number, because the mean of its divisors is an integer number (405384).

Almost surely, 2^5646656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5646656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5675376).

5646656 is an abundant number, since it is smaller than the sum of its proper divisors (5704096).

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

5646656 is a wasteful number, since it uses less digits than its factorization.

5646656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1148 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 5646656 is about 2376.2693450028. The cubic root of 5646656 is about 178.0726043081.

The spelling of 5646656 in words is "five million, six hundred forty-six thousand, six hundred fifty-six".