5643403 has 4 divisors (see below), whose sum is σ = 5650128. Its totient is φ = 5636680.

The previous prime is 5643389. The next prime is 5643413. The reversal of 5643403 is 3043465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3043465 = 5 ⋅608693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5643403 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5643413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1888 + ... + 3853.

It is an arithmetic number, because the mean of its divisors is an integer number (1412532).

Almost surely, 2^5643403 is an apocalyptic number.

5643403 is a deficient number, since it is larger than the sum of its proper divisors (6725).

5643403 is an equidigital number, since it uses as much as digits as its factorization.

5643403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6724.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 5643403 is about 2375.5847701145. The cubic root of 5643403 is about 178.0384022686.

Adding to 5643403 its reverse (3043465), we get a palindrome (8686868).

The spelling of 5643403 in words is "five million, six hundred forty-three thousand, four hundred three".