16654223 has 4 divisors (see below), whose sum is σ = 17191488. Its totient is φ = 16116960.

The previous prime is 16654217. The next prime is 16654247. The reversal of 16654223 is 32245661.

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 16654223 - 2¹⁴ = 16637839 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16654213) 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 in 3 ways as a sum of consecutive naturals, for example, 268586 + ... + 268647.

It is an arithmetic number, because the mean of its divisors is an integer number (4297872).

Almost surely, 2^16654223 is an apocalyptic number.

16654223 is a deficient number, since it is larger than the sum of its proper divisors (537265).

16654223 is an equidigital number, since it uses as much as digits as its factorization.

16654223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537264.

The product of its digits is 8640, while the sum is 29.

The square root of 16654223 is about 4080.9585883711. The cubic root of 16654223 is about 255.3728903091.

Adding to 16654223 its reverse (32245661), we get a palindrome (48899884).

The spelling of 16654223 in words is "sixteen million, six hundred fifty-four thousand, two hundred twenty-three".