4002403 has 2 divisors, whose sum is σ = 4002404. Its totient is φ = 4002402.

The previous prime is 4002389. The next prime is 4002431. The reversal of 4002403 is 3042004.

4002403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4002403 - 2⁹ = 4001891 is a prime.

It is not a weakly prime, because it can be changed into another prime (4006403) 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 as a sum of consecutive naturals, namely, 2001201 + 2001202.

It is an arithmetic number, because the mean of its divisors is an integer number (2001202).

Almost surely, 2^4002403 is an apocalyptic number.

4002403 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002403 is an equidigital number, since it uses as much as digits as its factorization.

4002403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 4002403 is about 2000.6006598020. The cubic root of 4002403 is about 158.7718865395.

Adding to 4002403 its reverse (3042004), we get a palindrome (7044407).

The spelling of 4002403 in words is "four million, two thousand, four hundred three".