16722023 has 2 divisors, whose sum is σ = 16722024. Its totient is φ = 16722022.

The previous prime is 16721993. The next prime is 16722059. The reversal of 16722023 is 32022761.

It is a weak prime.

It is an emirp because it is prime and its reverse (32022761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16722023 - 2¹⁰ = 16720999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16722023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16722073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361011 + 8361012.

It is an arithmetic number, because the mean of its divisors is an integer number (8361012).

Almost surely, 2^16722023 is an apocalyptic number.

16722023 is a deficient number, since it is larger than the sum of its proper divisors (1).

16722023 is an equidigital number, since it uses as much as digits as its factorization.

16722023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 16722023 is about 4089.2570229811. The cubic root of 16722023 is about 255.7189654808.

Adding to 16722023 its reverse (32022761), we get a palindrome (48744784).

The spelling of 16722023 in words is "sixteen million, seven hundred twenty-two thousand, twenty-three".