16223206 has 4 divisors (see below), whose sum is σ = 24334812. Its totient is φ = 8111602.

The previous prime is 16223197. The next prime is 16223213. The reversal of 16223206 is 60232261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60232261 = 19 ⋅3170119.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4055800 + ... + 4055803.

It is an arithmetic number, because the mean of its divisors is an integer number (6083703).

Almost surely, 2^16223206 is an apocalyptic number.

16223206 is a deficient number, since it is larger than the sum of its proper divisors (8111606).

16223206 is an equidigital number, since it uses as much as digits as its factorization.

16223206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8111605.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 16223206 is about 4027.8041163890. The cubic root of 16223206 is about 253.1505610726.

Adding to 16223206 its reverse (60232261), we get a palindrome (76455467).

The spelling of 16223206 in words is "sixteen million, two hundred twenty-three thousand, two hundred six".