1083209 has 8 divisors (see below), whose sum is σ = 1165440. Its totient is φ = 1003536.

The previous prime is 1083193. The next prime is 1083211. The reversal of 1083209 is 9023801.

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 1083209 - 2⁴ = 1083193 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1083289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (145680).

2^1083209 is an apocalyptic number.

1083209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1083209 is a deficient number, since it is larger than the sum of its proper divisors (82231).

1083209 is a wasteful number, since it uses less digits than its factorization.

1083209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1083209 is about 1040.7732702179. The cubic root of 1083209 is about 102.7000732257.

The spelling of 1083209 in words is "one million, eighty-three thousand, two hundred nine".