2002563917 has 2 divisors, whose sum is σ = 2002563918. Its totient is φ = 2002563916.

The previous prime is 2002563889. The next prime is 2002563923. The reversal of 2002563917 is 7193652002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1951784041 + 50779876 = 44179^2 + 7126^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002563917 - 2²⁴ = 1985786701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002563317) 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, 1001281958 + 1001281959.

It is an arithmetic number, because the mean of its divisors is an integer number (1001281959).

Almost surely, 2^2002563917 is an apocalyptic number.

It is an amenable number.

2002563917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002563917 is an equidigital number, since it uses as much as digits as its factorization.

2002563917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 2002563917 is about 44750.0158323994. The cubic root of 2002563917 is about 1260.4592088276.

The spelling of 2002563917 in words is "two billion, two million, five hundred sixty-three thousand, nine hundred seventeen".