9990017 has 2 divisors, whose sum is σ = 9990018. Its totient is φ = 9990016.

The previous prime is 9989957. The next prime is 9990047. The reversal of 9990017 is 7100999.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8814961 + 1175056 = 2969^2 + 1084^2 .

It is an emirp because it is prime and its reverse (7100999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9990017 is a prime.

It is not a weakly prime, because it can be changed into another prime (9990047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995008 + 4995009.

It is an arithmetic number, because the mean of its divisors is an integer number (4995009).

Almost surely, 2^9990017 is an apocalyptic number.

It is an amenable number.

9990017 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990017 is an equidigital number, since it uses as much as digits as its factorization.

9990017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 9990017 is about 3160.6988151357. The cubic root of 9990017 is about 215.3717527281.

The spelling of 9990017 in words is "nine million, nine hundred ninety thousand, seventeen".