99224 has 16 divisors (see below), whose sum is σ = 189600. Its totient is φ = 48672.

The previous prime is 99223. The next prime is 99233. The reversal of 99224 is 42299.

It is a Cunningham number, because it is equal to 315²-1.

It is a plaindrome in base 5.

It is a zygodrome in base 2 and base 5.

It is a junction number, because it is equal to n+sod(n) for n = 99193 and 99202.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 99224.

It is not an unprimeable number, because it can be changed into a prime (99223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554 + ... + 710.

It is an arithmetic number, because the mean of its divisors is an integer number (11850).

2⁹⁹²²⁴ is an apocalyptic number.

It is an amenable number.

99224 is a deficient number, since it is larger than the sum of its proper divisors (90376).

99224 is a wasteful number, since it uses less digits than its factorization.

99224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 238 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 99224 is about 314.9984126944. The cubic root of 99224 is about 46.2955139976.

It can be divided in two parts, 99 and 224, that added together give a palindrome (323).

The spelling of 99224 in words is "ninety-nine thousand, two hundred twenty-four".