4086909 has 16 divisors (see below), whose sum is σ = 6219840. Its totient is φ = 2650320.

The previous prime is 4086889. The next prime is 4086911. The reversal of 4086909 is 9096804.

It is not a de Polignac number, because 4086909 - 2⁵ = 4086877 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4086949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (388740).

Almost surely, 2^4086909 is an apocalyptic number.

It is an amenable number.

4086909 is a deficient number, since it is larger than the sum of its proper divisors (2132931).

4086909 is a wasteful number, since it uses less digits than its factorization.

4086909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 4086909 is about 2021.6104966091. The cubic root of 4086909 is about 159.8815399209.

The spelling of 4086909 in words is "four million, eighty-six thousand, nine hundred nine".