99992223 has 12 divisors (see below), whose sum is σ = 144655368. Its totient is φ = 66558960.

The previous prime is 99992219. The next prime is 99992239. The reversal of 99992223 is 32229999.

It is not a de Polignac number, because 99992223 - 2² = 99992219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99992213) 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 11 ways as a sum of consecutive naturals, for example, 2113 + ... + 14298.

It is an arithmetic number, because the mean of its divisors is an integer number (12054614).

Almost surely, 2^99992223 is an apocalyptic number.

99992223 is a deficient number, since it is larger than the sum of its proper divisors (44663145).

99992223 is a wasteful number, since it uses less digits than its factorization.

99992223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094 (or 17091 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 99992223 is about 9999.6111424395. The cubic root of 99992223 is about 464.1468505039.

The spelling of 99992223 in words is "ninety-nine million, nine hundred ninety-two thousand, two hundred twenty-three".