99860017 has 2 divisors, whose sum is σ = 99860018. Its totient is φ = 99860016.

The previous prime is 99859999. The next prime is 99860027. The reversal of 99860017 is 71006899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 30371121 = 8336^2 + 5511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99860017 is a prime.

It is not a weakly prime, because it can be changed into another prime (99860027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49930008 + 49930009.

It is an arithmetic number, because the mean of its divisors is an integer number (49930009).

Almost surely, 2^99860017 is an apocalyptic number.

It is an amenable number.

99860017 is a deficient number, since it is larger than the sum of its proper divisors (1).

99860017 is an equidigital number, since it uses as much as digits as its factorization.

99860017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 99860017 is about 9992.9983988791. The cubic root of 99860017 is about 463.9422010471.

The spelling of 99860017 in words is "ninety-nine million, eight hundred sixty thousand, seventeen".