1118791 has 8 divisors (see below), whose sum is σ = 1169280. Its totient is φ = 1069152.

The previous prime is 1118783. The next prime is 1118797. The reversal of 1118791 is 1978111.

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 1118791 - 2³ = 1118783 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118797) 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, 4906 + ... + 5128.

It is an arithmetic number, because the mean of its divisors is an integer number (146160).

2^1118791 is an apocalyptic number.

1118791 is a deficient number, since it is larger than the sum of its proper divisors (50489).

1118791 is a wasteful number, since it uses less digits than its factorization.

1118791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its digits is 504, while the sum is 28.

The square root of 1118791 is about 1057.7291713856. The cubic root of 1118791 is about 103.8125011704.

The spelling of 1118791 in words is "one million, one hundred eighteen thousand, seven hundred ninety-one".