2945903 has 8 divisors (see below), whose sum is σ = 3058848. Its totient is φ = 2834784.

The previous prime is 2945869. The next prime is 2945933. The reversal of 2945903 is 3095492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2945903 - 2⁸ = 2945647 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 2945903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3425 + ... + 4197.

It is an arithmetic number, because the mean of its divisors is an integer number (382356).

2^2945903 is an apocalyptic number.

2945903 is a deficient number, since it is larger than the sum of its proper divisors (112945).

2945903 is a wasteful number, since it uses less digits than its factorization.

2945903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2945903 is about 1716.3633065292. The cubic root of 2945903 is about 143.3527892585.

The spelling of 2945903 in words is "two million, nine hundred forty-five thousand, nine hundred three".