1083809768 has 8 divisors (see below), whose sum is σ = 2032143330. Its totient is φ = 541904880.

The previous prime is 1083809747. The next prime is 1083809777. The reversal of 1083809768 is 8679083801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 879834244 + 203975524 = 29662^2 + 14282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1083809768² = 2349287226424427648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67738103 + ... + 67738118.

Almost surely, 2^1083809768 is an apocalyptic number.

It is an amenable number.

1083809768 is a deficient number, since it is larger than the sum of its proper divisors (948333562).

1083809768 is a wasteful number, since it uses less digits than its factorization.

1083809768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135476227 (or 135476223 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1083809768 is about 32921.2661967914. The cubic root of 1083809768 is about 1027.1905617810.

The spelling of 1083809768 in words is "one billion, eighty-three million, eight hundred nine thousand, seven hundred sixty-eight".