2002903 has 4 divisors (see below), whose sum is σ = 2289040. Its totient is φ = 1716768.

The previous prime is 2002883. The next prime is 2002907. The reversal of 2002903 is 3092002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2002903 - 2¹³ = 1994711 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 (2002907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143058 + ... + 143071.

It is an arithmetic number, because the mean of its divisors is an integer number (572260).

2^2002903 is an apocalyptic number.

2002903 is a deficient number, since it is larger than the sum of its proper divisors (286137).

2002903 is an equidigital number, since it uses as much as digits as its factorization.

2002903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286136.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2002903 is about 1415.2395556937. The cubic root of 2002903 is about 126.0530346993.

Adding to 2002903 its reverse (3092002), we get a palindrome (5094905).

The spelling of 2002903 in words is "two million, two thousand, nine hundred three".