2006239993 has 2 divisors, whose sum is σ = 2006239994. Its totient is φ = 2006239992.

The previous prime is 2006239987. The next prime is 2006240017. The reversal of 2006239993 is 3999326002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1791998224 + 214241769 = 42332^2 + 14637^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006239993 - 2²¹ = 2004142841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2006239903) 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, 1003119996 + 1003119997.

It is an arithmetic number, because the mean of its divisors is an integer number (1003119997).

Almost surely, 2^2006239993 is an apocalyptic number.

It is an amenable number.

2006239993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006239993 is an equidigital number, since it uses as much as digits as its factorization.

2006239993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 2006239993 is about 44791.0704605282. The cubic root of 2006239993 is about 1261.2300059465.

The spelling of 2006239993 in words is "two billion, six million, two hundred thirty-nine thousand, nine hundred ninety-three".