2990903 has 4 divisors (see below), whose sum is σ = 2995368. Its totient is φ = 2986440.

The previous prime is 2990899. The next prime is 2990917. The reversal of 2990903 is 3090992.

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 2990903 - 2² = 2990899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2990903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001 + ... + 2642.

It is an arithmetic number, because the mean of its divisors is an integer number (748842).

2^2990903 is an apocalyptic number.

2990903 is a deficient number, since it is larger than the sum of its proper divisors (4465).

2990903 is an equidigital number, since it uses as much as digits as its factorization.

2990903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 2990903 is about 1729.4227360596. The cubic root of 2990903 is about 144.0790300499.

The spelling of 2990903 in words is "two million, nine hundred ninety thousand, nine hundred three".