18327713 has 2 divisors, whose sum is σ = 18327714. Its totient is φ = 18327712.

The previous prime is 18327707. The next prime is 18327719. The reversal of 18327713 is 31772381.

It is a balanced prime because it is at equal distance from previous prime (18327707) and next prime (18327719).

It can be written as a sum of positive squares in only one way, i.e., 9935104 + 8392609 = 3152^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 18327713 - 2¹⁸ = 18065569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18327713.

It is not a weakly prime, because it can be changed into another prime (18327719) 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, 9163856 + 9163857.

It is an arithmetic number, because the mean of its divisors is an integer number (9163857).

Almost surely, 2^18327713 is an apocalyptic number.

It is an amenable number.

18327713 is a deficient number, since it is larger than the sum of its proper divisors (1).

18327713 is an equidigital number, since it uses as much as digits as its factorization.

18327713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 18327713 is about 4281.0878290453. The cubic root of 18327713 is about 263.6550485910.

The spelling of 18327713 in words is "eighteen million, three hundred twenty-seven thousand, seven hundred thirteen".