2003918917 has 32 divisors (see below), whose sum is σ = 2697246720. Its totient is φ = 1437808320.

The previous prime is 2003918857. The next prime is 2003918941. The reversal of 2003918917 is 7198193002.

It is not a de Polignac number, because 2003918917 - 2⁷ = 2003918789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2003918917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003918017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441184 + ... + 445702.

It is an arithmetic number, because the mean of its divisors is an integer number (84288960).

Almost surely, 2^2003918917 is an apocalyptic number.

It is an amenable number.

2003918917 is a deficient number, since it is larger than the sum of its proper divisors (693327803).

2003918917 is a wasteful number, since it uses less digits than its factorization.

2003918917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 2003918917 is about 44765.1529317169. The cubic root of 2003918917 is about 1260.7434339895.

The spelling of 2003918917 in words is "two billion, three million, nine hundred eighteen thousand, nine hundred seventeen".