18359713 has 2 divisors, whose sum is σ = 18359714. Its totient is φ = 18359712.

The previous prime is 18359699. The next prime is 18359717. The reversal of 18359713 is 31795381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15745024 + 2614689 = 3968^2 + 1617^2 .

It is an emirp because it is prime and its reverse (31795381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18359713 - 2¹³ = 18351521 is a prime.

It is a super-2 number, since 2×18359713² = 674158122884738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18359717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9179856 + 9179857.

It is an arithmetic number, because the mean of its divisors is an integer number (9179857).

Almost surely, 2^18359713 is an apocalyptic number.

It is an amenable number.

18359713 is a deficient number, since it is larger than the sum of its proper divisors (1).

18359713 is an equidigital number, since it uses as much as digits as its factorization.

18359713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 18359713 is about 4284.8235669628. The cubic root of 18359713 is about 263.8084057144.

The spelling of 18359713 in words is "eighteen million, three hundred fifty-nine thousand, seven hundred thirteen".