18716323 has 2 divisors, whose sum is σ = 18716324. Its totient is φ = 18716322.

The previous prime is 18716297. The next prime is 18716353. The reversal of 18716323 is 32361781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18716323 - 2¹⁷ = 18585251 is a prime.

It is not a weakly prime, because it can be changed into another prime (18716353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9358161 + 9358162.

It is an arithmetic number, because the mean of its divisors is an integer number (9358162).

Almost surely, 2^18716323 is an apocalyptic number.

18716323 is a deficient number, since it is larger than the sum of its proper divisors (1).

18716323 is an equidigital number, since it uses as much as digits as its factorization.

18716323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 18716323 is about 4326.2365862260. The cubic root of 18716323 is about 265.5054929628.

The spelling of 18716323 in words is "eighteen million, seven hundred sixteen thousand, three hundred twenty-three".