1116685 has 4 divisors (see below), whose sum is σ = 1340028. Its totient is φ = 893344.

The previous prime is 1116677. The next prime is 1116701. The reversal of 1116685 is 5866111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5866111 = 859 ⋅6829.

It can be written as a sum of positive squares in 2 ways, for example, as 669124 + 447561 = 818^2 + 669^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116685 - 2³ = 1116677 is a prime.

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, 111664 + ... + 111673.

It is an arithmetic number, because the mean of its divisors is an integer number (335007).

2^1116685 is an apocalyptic number.

It is an amenable number.

1116685 is a deficient number, since it is larger than the sum of its proper divisors (223343).

1116685 is an equidigital number, since it uses as much as digits as its factorization.

1116685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223342.

The product of its digits is 1440, while the sum is 28.

The square root of 1116685 is about 1056.7331735116. The cubic root of 1116685 is about 103.7473217483.

The spelling of 1116685 in words is "one million, one hundred sixteen thousand, six hundred eighty-five".