4243003 has 2 divisors, whose sum is σ = 4243004. Its totient is φ = 4243002.

The previous prime is 4242991. The next prime is 4243009. The reversal of 4243003 is 3003424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243003 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121501 + 2121502.

It is an arithmetic number, because the mean of its divisors is an integer number (2121502).

Almost surely, 2^4243003 is an apocalyptic number.

4243003 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243003 is an equidigital number, since it uses as much as digits as its factorization.

4243003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 4243003 is about 2059.8550919907. The cubic root of 4243003 is about 161.8916488295.

Adding to 4243003 its reverse (3003424), we get a palindrome (7246427).

The spelling of 4243003 in words is "four million, two hundred forty-three thousand, three".