1086909 has 4 divisors (see below), whose sum is σ = 1449216. Its totient is φ = 724604.

The previous prime is 1086901. The next prime is 1086913. The reversal of 1086909 is 9096801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1086909 - 2³ = 1086901 is a prime.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1086909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086901) 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 3 ways as a sum of consecutive naturals, for example, 181149 + ... + 181154.

It is an arithmetic number, because the mean of its divisors is an integer number (362304).

2^1086909 is an apocalyptic number.

It is an amenable number.

1086909 is a deficient number, since it is larger than the sum of its proper divisors (362307).

1086909 is an equidigital number, since it uses as much as digits as its factorization.

1086909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362306.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1086909 is about 1042.5492794108. The cubic root of 1086909 is about 102.8168738419.

The spelling of 1086909 in words is "one million, eighty-six thousand, nine hundred nine".