3686369 has 2 divisors, whose sum is σ = 3686370. Its totient is φ = 3686368.

The previous prime is 3686357. The next prime is 3686383. The reversal of 3686369 is 9636863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3655744 + 30625 = 1912^2 + 175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3686369 is a prime.

It is a super-2 number, since 2×3686369² = 27178632808322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3686329) 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, 1843184 + 1843185.

It is an arithmetic number, because the mean of its divisors is an integer number (1843185).

Almost surely, 2^3686369 is an apocalyptic number.

It is an amenable number.

3686369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3686369 is an equidigital number, since it uses as much as digits as its factorization.

3686369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 3686369 is about 1919.9919270664. The cubic root of 3686369 is about 154.4778685182.

The spelling of 3686369 in words is "three million, six hundred eighty-six thousand, three hundred sixty-nine".