99999224 has 16 divisors (see below), whose sum is σ = 201921720. Its totient is φ = 46153440.

The previous prime is 99999217. The next prime is 99999247. The reversal of 99999224 is 42299999.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480662 + ... + 480869.

Almost surely, 2^99999224 is an apocalyptic number.

It is an amenable number.

99999224 is an abundant number, since it is smaller than the sum of its proper divisors (101922496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99999224 is a wasteful number, since it uses less digits than its factorization.

99999224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961550 (or 961546 counting only the distinct ones).

The product of its digits is 944784, while the sum is 53.

The square root of 99999224 is about 9999.9611999247. The cubic root of 99999224 is about 464.1576827339.

The spelling of 99999224 in words is "ninety-nine million, nine hundred ninety-nine thousand, two hundred twenty-four".