13686193 has 2 divisors, whose sum is σ = 13686194. Its totient is φ = 13686192.

The previous prime is 13686191. The next prime is 13686229. The reversal of 13686193 is 39168631.

13686193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7091569 + 6594624 = 2663^2 + 2568^2 .

It is a cyclic number.

It is not a de Polignac number, because 13686193 - 2¹ = 13686191 is a prime.

Together with 13686191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13686191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6843096 + 6843097.

It is an arithmetic number, because the mean of its divisors is an integer number (6843097).

Almost surely, 2^13686193 is an apocalyptic number.

It is an amenable number.

13686193 is a deficient number, since it is larger than the sum of its proper divisors (1).

13686193 is an equidigital number, since it uses as much as digits as its factorization.

13686193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 13686193 is about 3699.4855047695. The cubic root of 13686193 is about 239.1998410252.

It can be divided in two parts, 13 and 686193, that added together give a triangular number (686206 = T₁₁₇₁).

The spelling of 13686193 in words is "thirteen million, six hundred eighty-six thousand, one hundred ninety-three".