16775222 has 4 divisors (see below), whose sum is σ = 25162836. Its totient is φ = 8387610.

The previous prime is 16775221. The next prime is 16775237. The reversal of 16775222 is 22257761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22257761 = 29 ⋅767509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16775221) 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 as a sum of consecutive naturals, namely, 4193804 + ... + 4193807.

It is an arithmetic number, because the mean of its divisors is an integer number (6290709).

Almost surely, 2^16775222 is an apocalyptic number.

16775222 is a deficient number, since it is larger than the sum of its proper divisors (8387614).

16775222 is an equidigital number, since it uses as much as digits as its factorization.

16775222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8387613.

The product of its digits is 11760, while the sum is 32.

The square root of 16775222 is about 4095.7565845641. The cubic root of 16775222 is about 255.9898575897.

The spelling of 16775222 in words is "sixteen million, seven hundred seventy-five thousand, two hundred twenty-two".