5643603 has 24 divisors (see below), whose sum is σ = 9640800. Its totient is φ = 3112704.

The previous prime is 5643601. The next prime is 5643607. The reversal of 5643603 is 3063465.

5643603 is a `hidden beast` number, since 56 + 4 + 3 + 603 = 666.

It is not a de Polignac number, because 5643603 - 2¹ = 5643601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5643601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283 + ... + 3371.

It is an arithmetic number, because the mean of its divisors is an integer number (401700).

Almost surely, 2^5643603 is an apocalyptic number.

5643603 is a deficient number, since it is larger than the sum of its proper divisors (3997197).

5643603 is a wasteful number, since it uses less digits than its factorization.

5643603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131 (or 3128 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 5643603 is about 2375.6268646402. The cubic root of 5643603 is about 178.0405054476.

The spelling of 5643603 in words is "five million, six hundred forty-three thousand, six hundred three".