1084359685 has 4 divisors (see below), whose sum is σ = 1301231628. Its totient is φ = 867487744.

The previous prime is 1084359667. The next prime is 1084359709. The reversal of 1084359685 is 5869534801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 357625921 + 726733764 = 18911^2 + 26958^2 .

It is a cyclic number.

It is not a de Polignac number, because 1084359685 - 2¹⁹ = 1083835397 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 108435964 + ... + 108435973.

It is an arithmetic number, because the mean of its divisors is an integer number (325307907).

Almost surely, 2^1084359685 is an apocalyptic number.

It is an amenable number.

1084359685 is a deficient number, since it is larger than the sum of its proper divisors (216871943).

1084359685 is an equidigital number, since it uses as much as digits as its factorization.

1084359685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216871942.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 1084359685 is about 32929.6171401977. The cubic root of 1084359685 is about 1027.3642620185.

The spelling of 1084359685 in words is "one billion, eighty-four million, three hundred fifty-nine thousand, six hundred eighty-five".