16223299 has 4 divisors (see below), whose sum is σ = 16247736. Its totient is φ = 16198864.

The previous prime is 16223293. The next prime is 16223309. The reversal of 16223299 is 99232261.

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

It is a cyclic number.

It is not a de Polignac number, because 16223299 - 2¹³ = 16215107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16223293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11194 + ... + 12559.

It is an arithmetic number, because the mean of its divisors is an integer number (4061934).

Almost surely, 2^16223299 is an apocalyptic number.

16223299 is a deficient number, since it is larger than the sum of its proper divisors (24437).

16223299 is an equidigital number, since it uses as much as digits as its factorization.

16223299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24436.

The product of its digits is 11664, while the sum is 34.

The square root of 16223299 is about 4027.8156611245. The cubic root of 16223299 is about 253.1510448027.

The spelling of 16223299 in words is "sixteen million, two hundred twenty-three thousand, two hundred ninety-nine".