5643903 has 8 divisors (see below), whose sum is σ = 7648816. Its totient is φ = 3700800.

The previous prime is 5643877. The next prime is 5643919. The reversal of 5643903 is 3093465.

It is a happy number.

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

It is not a de Polignac number, because 5643903 - 2¹³ = 5635711 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 (5643923) 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, 15238 + ... + 15603.

It is an arithmetic number, because the mean of its divisors is an integer number (956102).

Almost surely, 2^5643903 is an apocalyptic number.

5643903 is a deficient number, since it is larger than the sum of its proper divisors (2004913).

5643903 is a wasteful number, since it uses less digits than its factorization.

5643903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30905.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 5643903 is about 2375.6900050301. The cubic root of 5643903 is about 178.0436601229.

The spelling of 5643903 in words is "five million, six hundred forty-three thousand, nine hundred three".