1116791 has 8 divisors (see below), whose sum is σ = 1210944. Its totient is φ = 1023840.

The previous prime is 1116751. The next prime is 1116809. The reversal of 1116791 is 1976111.

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 1116791 - 2¹⁰ = 1115767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1116791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116701) 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, 3365 + ... + 3681.

It is an arithmetic number, because the mean of its divisors is an integer number (151368).

2^1116791 is an apocalyptic number.

1116791 is a deficient number, since it is larger than the sum of its proper divisors (94153).

1116791 is a wasteful number, since it uses less digits than its factorization.

1116791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its digits is 378, while the sum is 26.

The square root of 1116791 is about 1056.7833268935. The cubic root of 1116791 is about 103.7506043416.

Subtracting from 1116791 its sum of digits (26), we obtain a triangular number (1116765 = T₁₄₉₄).

The spelling of 1116791 in words is "one million, one hundred sixteen thousand, seven hundred ninety-one".