5644385 has 8 divisors (see below), whose sum is σ = 6840936. Its totient is φ = 4470400.

The previous prime is 5644369. The next prime is 5644399. The reversal of 5644385 is 5834465.

It can be written as a sum of positive squares in 4 ways, for example, as 3055504 + 2588881 = 1748^2 + 1609^2 .

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

It is not a de Polignac number, because 5644385 - 2⁴ = 5644369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5084 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (855117).

Almost surely, 2^5644385 is an apocalyptic number.

It is an amenable number.

5644385 is a deficient number, since it is larger than the sum of its proper divisors (1196551).

5644385 is a wasteful number, since it uses less digits than its factorization.

5644385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11283.

The product of its digits is 57600, while the sum is 35.

The square root of 5644385 is about 2375.7914470761. The cubic root of 5644385 is about 178.0487284005.

The spelling of 5644385 in words is "five million, six hundred forty-four thousand, three hundred eighty-five".