5644865 has 8 divisors (see below), whose sum is σ = 6820200. Its totient is φ = 4484992.

The previous prime is 5644861. The next prime is 5644889. The reversal of 5644865 is 5684465.

5644865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 341056 + 5303809 = 584^2 + 2303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5644865 - 2² = 5644861 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5644861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3044 + ... + 4533.

It is an arithmetic number, because the mean of its divisors is an integer number (852525).

Almost surely, 2^5644865 is an apocalyptic number.

It is an amenable number.

5644865 is a deficient number, since it is larger than the sum of its proper divisors (1175335).

5644865 is a wasteful number, since it uses less digits than its factorization.

5644865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731.

The product of its digits is 115200, while the sum is 38.

The square root of 5644865 is about 2375.8924638965. The cubic root of 5644865 is about 178.0537753612.

The spelling of 5644865 in words is "five million, six hundred forty-four thousand, eight hundred sixty-five".