5644445 has 4 divisors (see below), whose sum is σ = 6773340. Its totient is φ = 4515552.

The previous prime is 5644439. The next prime is 5644477. The reversal of 5644445 is 5444465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3602404 + 2042041 = 1898^2 + 1429^2 .

It is a cyclic number.

It is not a de Polignac number, because 5644445 - 2¹⁴ = 5628061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564440 + ... + 564449.

It is an arithmetic number, because the mean of its divisors is an integer number (1693335).

Almost surely, 2^5644445 is an apocalyptic number.

It is an amenable number.

5644445 is a deficient number, since it is larger than the sum of its proper divisors (1128895).

5644445 is a wasteful number, since it uses less digits than its factorization.

5644445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128894.

The product of its digits is 38400, while the sum is 32.

The square root of 5644445 is about 2375.8040744135. The cubic root of 5644445 is about 178.0493592862.

The spelling of 5644445 in words is "five million, six hundred forty-four thousand, four hundred forty-five".