16726223 has 4 divisors (see below), whose sum is σ = 16735128. Its totient is φ = 16717320.

The previous prime is 16726207. The next prime is 16726231. The reversal of 16726223 is 32262761.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32262761 = 29 ⋅1112509.

It is a cyclic number.

It is not a de Polignac number, because 16726223 - 2⁴ = 16726207 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 (16786223) 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, 413 + ... + 5798.

It is an arithmetic number, because the mean of its divisors is an integer number (4183782).

Almost surely, 2^16726223 is an apocalyptic number.

16726223 is a deficient number, since it is larger than the sum of its proper divisors (8905).

16726223 is an equidigital number, since it uses as much as digits as its factorization.

16726223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8904.

The product of its digits is 6048, while the sum is 29.

The square root of 16726223 is about 4089.7705314602. The cubic root of 16726223 is about 255.7403729733.

Adding to 16726223 its reverse (32262761), we get a palindrome (48988984).

The spelling of 16726223 in words is "sixteen million, seven hundred twenty-six thousand, two hundred twenty-three".