1083409 has 2 divisors, whose sum is σ = 1083410. Its totient is φ = 1083408.

The previous prime is 1083391. The next prime is 1083431. The reversal of 1083409 is 9043801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883600 + 199809 = 940^2 + 447^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083409 - 2⁵ = 1083377 is a prime.

It is a super-2 number, since 2×1083409² = 2347550122562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1083449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541704 + 541705.

It is an arithmetic number, because the mean of its divisors is an integer number (541705).

2^1083409 is an apocalyptic number.

It is an amenable number.

1083409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083409 is an equidigital number, since it uses as much as digits as its factorization.

1083409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1083409 is about 1040.8693481893. The cubic root of 1083409 is about 102.7063935667.

The spelling of 1083409 in words is "one million, eighty-three thousand, four hundred nine".