3688009 has 8 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 3387216.

The previous prime is 3688001. The next prime is 3688021. The reversal of 3688009 is 9008863.

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 3688009 - 2³ = 3688001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3688001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2514 + ... + 3700.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^3688009 is an apocalyptic number.

It is an amenable number.

3688009 is a deficient number, since it is larger than the sum of its proper divisors (303671).

3688009 is a wasteful number, since it uses less digits than its factorization.

3688009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 3688009 is about 1920.4189647054. The cubic root of 3688009 is about 154.5007732739.

The spelling of 3688009 in words is "three million, six hundred eighty-eight thousand, nine".