3686309 has 8 divisors (see below), whose sum is σ = 4097952. Its totient is φ = 3287440.

The previous prime is 3686299. The next prime is 3686321. The reversal of 3686309 is 9036863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3686309 - 2¹² = 3682213 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a 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 in 7 ways as a sum of consecutive naturals, for example, 2579 + ... + 3744.

It is an arithmetic number, because the mean of its divisors is an integer number (512244).

Almost surely, 2^3686309 is an apocalyptic number.

It is an amenable number.

3686309 is a deficient number, since it is larger than the sum of its proper divisors (411643).

3686309 is a wasteful number, since it uses less digits than its factorization.

3686309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 3686309 is about 1919.9763019371. The cubic root of 3686309 is about 154.4770304105.

The spelling of 3686309 in words is "three million, six hundred eighty-six thousand, three hundred nine".