2006806993 has 2 divisors, whose sum is σ = 2006806994. Its totient is φ = 2006806992.

The previous prime is 2006806933. The next prime is 2006807021. The reversal of 2006806993 is 3996086002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1976424849 + 30382144 = 44457^2 + 5512^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006806993 - 2¹⁷ = 2006675921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2006806903) 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, 1003403496 + 1003403497.

It is an arithmetic number, because the mean of its divisors is an integer number (1003403497).

Almost surely, 2^2006806993 is an apocalyptic number.

It is an amenable number.

2006806993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006806993 is an equidigital number, since it uses as much as digits as its factorization.

2006806993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 2006806993 is about 44797.3993999652. The cubic root of 2006806993 is about 1261.3488102866.

The spelling of 2006806993 in words is "two billion, six million, eight hundred six thousand, nine hundred ninety-three".