16801223 has 2 divisors, whose sum is σ = 16801224. Its totient is φ = 16801222.

The previous prime is 16801217. The next prime is 16801243. The reversal of 16801223 is 32210861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16801223 - 2⁴ = 16801207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16801243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8400611 + 8400612.

It is an arithmetic number, because the mean of its divisors is an integer number (8400612).

Almost surely, 2^16801223 is an apocalyptic number.

16801223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16801223 is an equidigital number, since it uses as much as digits as its factorization.

16801223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 16801223 is about 4098.9294943924. The cubic root of 16801223 is about 256.1220477210.

The spelling of 16801223 in words is "sixteen million, eight hundred one thousand, two hundred twenty-three".