2003345893 has 2 divisors, whose sum is σ = 2003345894. Its totient is φ = 2003345892.

The previous prime is 2003345881. The next prime is 2003345899. The reversal of 2003345893 is 3985433002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1681574049 + 321771844 = 41007^2 + 17938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003345893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003345899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001672946 + 1001672947.

It is an arithmetic number, because the mean of its divisors is an integer number (1001672947).

Almost surely, 2^2003345893 is an apocalyptic number.

It is an amenable number.

2003345893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003345893 is an equidigital number, since it uses as much as digits as its factorization.

2003345893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2003345893 is about 44758.7521385483. The cubic root of 2003345893 is about 1260.6232519617.

Adding to 2003345893 its reverse (3985433002), we get a palindrome (5988778895).

The spelling of 2003345893 in words is "two billion, three million, three hundred forty-five thousand, eight hundred ninety-three".