5643320 has 64 divisors (see below), whose sum is σ = 13828320. Its totient is φ = 2064384.

The previous prime is 5643317. The next prime is 5643329. The reversal of 5643320 is 233465.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643329) 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, 29144 + ... + 29336.

Almost surely, 2^5643320 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 5643320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6914160).

5643320 is an abundant number, since it is smaller than the sum of its proper divisors (8185000).

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

5643320 is a wasteful number, since it uses less digits than its factorization.

5643320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 5643320 is about 2375.5673006674. The cubic root of 5643320 is about 178.0375294347.

Adding to 5643320 its reverse (233465), we get a palindrome (5876785).

The spelling of 5643320 in words is "five million, six hundred forty-three thousand, three hundred twenty".