2006239903 has 2 divisors, whose sum is σ = 2006239904. Its totient is φ = 2006239902.

The previous prime is 2006239901. The next prime is 2006239913. The reversal of 2006239903 is 3099326002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2006239903 - 2¹ = 2006239901 is a prime.

Together with 2006239901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006239901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003119951 + 1003119952.

It is an arithmetic number, because the mean of its divisors is an integer number (1003119952).

Almost surely, 2^2006239903 is an apocalyptic number.

2006239903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006239903 is an equidigital number, since it uses as much as digits as its factorization.

2006239903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 2006239903 is about 44791.0694558636. The cubic root of 2006239903 is about 1261.2299870869.

The spelling of 2006239903 in words is "two billion, six million, two hundred thirty-nine thousand, nine hundred three".