1116789 has 4 divisors (see below), whose sum is σ = 1489056. Its totient is φ = 744524.

The previous prime is 1116751. The next prime is 1116809. The reversal of 1116789 is 9876111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1116789 - 2⁹ = 1116277 is a prime.

It is a D-number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186129 + ... + 186134.

It is an arithmetic number, because the mean of its divisors is an integer number (372264).

2^1116789 is an apocalyptic number.

It is an amenable number.

1116789 is a deficient number, since it is larger than the sum of its proper divisors (372267).

1116789 is an equidigital number, since it uses as much as digits as its factorization.

1116789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372266.

The product of its digits is 3024, while the sum is 33.

The square root of 1116789 is about 1056.7823806253. The cubic root of 1116789 is about 103.7505424078.

The spelling of 1116789 in words is "one million, one hundred sixteen thousand, seven hundred eighty-nine".