16871223 has 16 divisors (see below), whose sum is σ = 23853056. Its totient is φ = 10588320.

The previous prime is 16871219. The next prime is 16871237. The reversal of 16871223 is 32217861.

It is not a de Polignac number, because 16871223 - 2² = 16871219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16871263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990 + ... + 5892.

It is an arithmetic number, because the mean of its divisors is an integer number (1490816).

Almost surely, 2^16871223 is an apocalyptic number.

16871223 is a deficient number, since it is larger than the sum of its proper divisors (6981833).

16871223 is a wasteful number, since it uses less digits than its factorization.

16871223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974.

The product of its digits is 4032, while the sum is 30.

The square root of 16871223 is about 4107.4594337619. The cubic root of 16871223 is about 256.4772540428.

The spelling of 16871223 in words is "sixteen million, eight hundred seventy-one thousand, two hundred twenty-three".