223399209 has 16 divisors (see below), whose sum is σ = 336150720. Its totient is φ = 130724160.

The previous prime is 223399177. The next prime is 223399243. The reversal of 223399209 is 902993322.

It is not a de Polignac number, because 223399209 - 2⁵ = 223399177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223399249) 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 15 ways as a sum of consecutive naturals, for example, 115762 + ... + 117675.

It is an arithmetic number, because the mean of its divisors is an integer number (21009420).

Almost surely, 2^223399209 is an apocalyptic number.

223399209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

223399209 is a deficient number, since it is larger than the sum of its proper divisors (112751511).

223399209 is a wasteful number, since it uses less digits than its factorization.

223399209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233480.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 223399209 is about 14946.5450522855. The cubic root of 223399209 is about 606.7743453288.

The spelling of 223399209 in words is "two hundred twenty-three million, three hundred ninety-nine thousand, two hundred nine".