5643863 has 4 divisors (see below), whose sum is σ = 5659368. Its totient is φ = 5628360.

The previous prime is 5643857. The next prime is 5643877. The reversal of 5643863 is 3683465.

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

It is a cyclic number.

It is not a de Polignac number, because 5643863 - 2⁸ = 5643607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7193 + ... + 7938.

It is an arithmetic number, because the mean of its divisors is an integer number (1414842).

Almost surely, 2^5643863 is an apocalyptic number.

5643863 is a deficient number, since it is larger than the sum of its proper divisors (15505).

5643863 is a wasteful number, since it uses less digits than its factorization.

5643863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15504.

The product of its digits is 51840, while the sum is 35.

The square root of 5643863 is about 2375.6815864084. The cubic root of 5643863 is about 178.0432395060.

The spelling of 5643863 in words is "five million, six hundred forty-three thousand, eight hundred sixty-three".