16992223 has 2 divisors, whose sum is σ = 16992224. Its totient is φ = 16992222.

The previous prime is 16992203. The next prime is 16992229. The reversal of 16992223 is 32229961.

It is a strong prime.

It is an emirp because it is prime and its reverse (32229961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16992223 - 2⁵ = 16992191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16992229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8496111 + 8496112.

It is an arithmetic number, because the mean of its divisors is an integer number (8496112).

Almost surely, 2^16992223 is an apocalyptic number.

16992223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16992223 is an equidigital number, since it uses as much as digits as its factorization.

16992223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 16992223 is about 4122.1624179549. The cubic root of 16992223 is about 257.0889435618.

The spelling of 16992223 in words is "sixteen million, nine hundred ninety-two thousand, two hundred twenty-three".