99238219 has 2 divisors, whose sum is σ = 99238220. Its totient is φ = 99238218.

The previous prime is 99238213. The next prime is 99238259. The reversal of 99238219 is 91283299.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99238219 - 2³ = 99238211 is a prime.

It is a super-2 number, since 2×99238219² = 19696448220583922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99238211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49619109 + 49619110.

It is an arithmetic number, because the mean of its divisors is an integer number (49619110).

Almost surely, 2^99238219 is an apocalyptic number.

99238219 is a deficient number, since it is larger than the sum of its proper divisors (1).

99238219 is an equidigital number, since it uses as much as digits as its factorization.

99238219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 43.

The square root of 99238219 is about 9961.8381335976. The cubic root of 99238219 is about 462.9772530564.

The spelling of 99238219 in words is "ninety-nine million, two hundred thirty-eight thousand, two hundred nineteen".