2006635717 has 2 divisors, whose sum is σ = 2006635718. Its totient is φ = 2006635716.

The previous prime is 2006635637. The next prime is 2006635723. The reversal of 2006635717 is 7175366002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1024064001 + 982571716 = 32001^2 + 31346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2006635717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006635727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003317858 + 1003317859.

It is an arithmetic number, because the mean of its divisors is an integer number (1003317859).

Almost surely, 2^2006635717 is an apocalyptic number.

It is an amenable number.

2006635717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006635717 is an equidigital number, since it uses as much as digits as its factorization.

2006635717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 2006635717 is about 44795.4876857033. The cubic root of 2006635717 is about 1261.3129249347.

The spelling of 2006635717 in words is "two billion, six million, six hundred thirty-five thousand, seven hundred seventeen".