99873219 has 16 divisors (see below), whose sum is σ = 137808000. Its totient is φ = 64295616.

The previous prime is 99873217. The next prime is 99873223. The reversal of 99873219 is 91237899.

It is not a de Polignac number, because 99873219 - 2¹ = 99873217 is a prime.

It is a super-2 number, since 2×99873219² = 19949319746843922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99873217) 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 in 15 ways as a sum of consecutive naturals, for example, 7132 + ... + 15830.

It is an arithmetic number, because the mean of its divisors is an integer number (8613000).

Almost surely, 2^99873219 is an apocalyptic number.

99873219 is a deficient number, since it is larger than the sum of its proper divisors (37934781).

99873219 is a wasteful number, since it uses less digits than its factorization.

99873219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8834.

The product of its digits is 244944, while the sum is 48.

The square root of 99873219 is about 9993.6589395476. The cubic root of 99873219 is about 463.9626453157.

The spelling of 99873219 in words is "ninety-nine million, eight hundred seventy-three thousand, two hundred nineteen".