16489223 has 2 divisors, whose sum is σ = 16489224. Its totient is φ = 16489222.

The previous prime is 16489219. The next prime is 16489237. The reversal of 16489223 is 32298461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16489223 - 2² = 16489219 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16489273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8244611 + 8244612.

It is an arithmetic number, because the mean of its divisors is an integer number (8244612).

Almost surely, 2^16489223 is an apocalyptic number.

16489223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16489223 is an equidigital number, since it uses as much as digits as its factorization.

16489223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 16489223 is about 4060.6924286382. The cubic root of 16489223 is about 254.5267295015.

The spelling of 16489223 in words is "sixteen million, four hundred eighty-nine thousand, two hundred twenty-three".