1106809 has 8 divisors (see below), whose sum is σ = 1215360. Its totient is φ = 999600.

The previous prime is 1106801. The next prime is 1106821. The reversal of 1106809 is 9086011.

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 1106809 - 2³ = 1106801 is a prime.

It is a Duffinian number.

1106809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1106801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419 + ... + 2839.

It is an arithmetic number, because the mean of its divisors is an integer number (151920).

2^1106809 is an apocalyptic number.

It is an amenable number.

1106809 is a deficient number, since it is larger than the sum of its proper divisors (108551).

1106809 is a wasteful number, since it uses less digits than its factorization.

1106809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1106809 is about 1052.0499037593. The cubic root of 1106809 is about 103.4405673707.

The spelling of 1106809 in words is "one million, one hundred six thousand, eight hundred nine".