383809 has 8 divisors (see below), whose sum is σ = 412128. Its totient is φ = 356160.

The previous prime is 383807. The next prime is 383813. The reversal of 383809 is 908383.

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 383809 - 2¹ = 383807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383807) 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, 1714 + ... + 1924.

It is an arithmetic number, because the mean of its divisors is an integer number (51516).

2³⁸³⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

383809 is a deficient number, since it is larger than the sum of its proper divisors (28319).

383809 is a wasteful number, since it uses less digits than its factorization.

383809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 383809 is about 619.5232037624. The cubic root of 383809 is about 72.6727706719.

The spelling of 383809 in words is "three hundred eighty-three thousand, eight hundred nine".