16744223 has 4 divisors (see below), whose sum is σ = 17321640. Its totient is φ = 16166808.

The previous prime is 16744219. The next prime is 16744271. The reversal of 16744223 is 32244761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32244761 = 269 ⋅119869.

It is a cyclic number.

It is not a de Polignac number, because 16744223 - 2² = 16744219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 577387 = 16744223 / (1 + 6 + 7 + 4 + 4 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16744213) 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, 288665 + ... + 288722.

It is an arithmetic number, because the mean of its divisors is an integer number (4330410).

Almost surely, 2^16744223 is an apocalyptic number.

16744223 is a deficient number, since it is larger than the sum of its proper divisors (577417).

16744223 is an equidigital number, since it uses as much as digits as its factorization.

16744223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577416.

The product of its digits is 8064, while the sum is 29.

The square root of 16744223 is about 4091.9705521912. The cubic root of 16744223 is about 255.8320788016.

Adding to 16744223 its reverse (32244761), we get a palindrome (48988984).

The spelling of 16744223 in words is "sixteen million, seven hundred forty-four thousand, two hundred twenty-three".