2003387 has 2 divisors, whose sum is σ = 2003388. Its totient is φ = 2003386.

The previous prime is 2003381. The next prime is 2003411. The reversal of 2003387 is 7833002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003387 - 2¹⁴ = 1987003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2003381) 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 as a sum of consecutive naturals, namely, 1001693 + 1001694.

It is an arithmetic number, because the mean of its divisors is an integer number (1001694).

2^2003387 is an apocalyptic number.

2003387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003387 is an equidigital number, since it uses as much as digits as its factorization.

2003387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2003387 is about 1415.4105411505. The cubic root of 2003387 is about 126.0631874218.

Adding to 2003387 its reverse (7833002), we get a palindrome (9836389).

The spelling of 2003387 in words is "two million, three thousand, three hundred eighty-seven".