99866017 has 2 divisors, whose sum is σ = 99866018. Its totient is φ = 99866016.

The previous prime is 99865999. The next prime is 99866021. The reversal of 99866017 is 71066899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99680256 + 185761 = 9984^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 99866017 - 2¹⁵ = 99833249 is a prime.

It is not a weakly prime, because it can be changed into another prime (99866027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49933008 + 49933009.

It is an arithmetic number, because the mean of its divisors is an integer number (49933009).

Almost surely, 2^99866017 is an apocalyptic number.

It is an amenable number.

99866017 is a deficient number, since it is larger than the sum of its proper divisors (1).

99866017 is an equidigital number, since it uses as much as digits as its factorization.

99866017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 99866017 is about 9993.2986045650. The cubic root of 99866017 is about 463.9514927120.

The spelling of 99866017 in words is "ninety-nine million, eight hundred sixty-six thousand, seventeen".