99700217 has 2 divisors, whose sum is σ = 99700218. Its totient is φ = 99700216.

The previous prime is 99700199. The next prime is 99700241. The reversal of 99700217 is 71200799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74459641 + 25240576 = 8629^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 99700217 - 2²⁶ = 32591353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99700267) 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, 49850108 + 49850109.

It is an arithmetic number, because the mean of its divisors is an integer number (49850109).

Almost surely, 2^99700217 is an apocalyptic number.

It is an amenable number.

99700217 is a deficient number, since it is larger than the sum of its proper divisors (1).

99700217 is an equidigital number, since it uses as much as digits as its factorization.

99700217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 99700217 is about 9984.9995993991. Note that the first 3 decimals coincide. The cubic root of 99700217 is about 463.6945959584.

The spelling of 99700217 in words is "ninety-nine million, seven hundred thousand, two hundred seventeen".