16774223 has 4 divisors (see below), whose sum is σ = 17760960. Its totient is φ = 15787488.

The previous prime is 16774201. The next prime is 16774249. The reversal of 16774223 is 32247761.

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 16774223 - 2¹⁰ = 16773199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16774223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16774273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493343 + ... + 493376.

It is an arithmetic number, because the mean of its divisors is an integer number (4440240).

Almost surely, 2^16774223 is an apocalyptic number.

16774223 is a deficient number, since it is larger than the sum of its proper divisors (986737).

16774223 is an equidigital number, since it uses as much as digits as its factorization.

16774223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986736.

The product of its digits is 14112, while the sum is 32.

The square root of 16774223 is about 4095.6346272586. The cubic root of 16774223 is about 255.9847759094.

The spelling of 16774223 in words is "sixteen million, seven hundred seventy-four thousand, two hundred twenty-three".