99219 has 4 divisors (see below), whose sum is σ = 132296. Its totient is φ = 66144.

The previous prime is 99191. The next prime is 99223. The reversal of 99219 is 91299.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99219 - 2⁸ = 98963 is a prime.

It is a super-2 number, since 2×99219² = 19688819922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (99259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16534 + ... + 16539.

It is an arithmetic number, because the mean of its divisors is an integer number (33074).

2⁹⁹²¹⁹ is an apocalyptic number.

99219 is a deficient number, since it is larger than the sum of its proper divisors (33077).

99219 is a wasteful number, since it uses less digits than its factorization.

99219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33076.

The product of its digits is 1458, while the sum is 30.

The square root of 99219 is about 314.9904760465. The cubic root of 99219 is about 46.2947363583.

The spelling of 99219 in words is "ninety-nine thousand, two hundred nineteen".