5643205 has 4 divisors (see below), whose sum is σ = 6771852. Its totient is φ = 4514560.

The previous prime is 5643181. The next prime is 5643217. The reversal of 5643205 is 5023465.

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 4198401 + 1444804 = 2049^2 + 1202^2 .

It is not a de Polignac number, because 5643205 - 2¹⁹ = 5118917 is a prime.

It is a Duffinian number.

5643205 is a lucky number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 5643205.

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, 564316 + ... + 564325.

It is an arithmetic number, because the mean of its divisors is an integer number (1692963).

Almost surely, 2^5643205 is an apocalyptic number.

It is an amenable number.

5643205 is a deficient number, since it is larger than the sum of its proper divisors (1128647).

5643205 is a wasteful number, since it uses less digits than its factorization.

5643205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128646.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 5643205 is about 2375.5430957994. The cubic root of 5643205 is about 178.0363200725.

The spelling of 5643205 in words is "five million, six hundred forty-three thousand, two hundred five".