1083809 has 2 divisors, whose sum is σ = 1083810. Its totient is φ = 1083808.

The previous prime is 1083793. The next prime is 1083827. The reversal of 1083809 is 9083801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 2209 = 1040^2 + 47^2 .

It is an emirp because it is prime and its reverse (9083801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1083809 - 2⁴ = 1083793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1083839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541904 + 541905.

It is an arithmetic number, because the mean of its divisors is an integer number (541905).

2^1083809 is an apocalyptic number.

It is an amenable number.

1083809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083809 is an equidigital number, since it uses as much as digits as its factorization.

1083809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1083809 is about 1041.0614775315. The cubic root of 1083809 is about 102.7190319155.

The spelling of 1083809 in words is "one million, eighty-three thousand, eight hundred nine".