18743713 has 2 divisors, whose sum is σ = 18743714. Its totient is φ = 18743712.

The previous prime is 18743693. The next prime is 18743717. The reversal of 18743713 is 31734781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10942864 + 7800849 = 3308^2 + 2793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18743713 is a prime.

It is a super-3 number, since 3×18743713³ (a number of 23 digits) contains 333 as substring.

It is equal to p_1195765 and since 18743713 and 1195765 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (18743717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9371856 + 9371857.

It is an arithmetic number, because the mean of its divisors is an integer number (9371857).

Almost surely, 2^18743713 is an apocalyptic number.

It is an amenable number.

18743713 is a deficient number, since it is larger than the sum of its proper divisors (1).

18743713 is an equidigital number, since it uses as much as digits as its factorization.

18743713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 18743713 is about 4329.4009978287. The cubic root of 18743713 is about 265.6349459344.

The spelling of 18743713 in words is "eighteen million, seven hundred forty-three thousand, seven hundred thirteen".