1118897 has 4 divisors (see below), whose sum is σ = 1204980. Its totient is φ = 1032816.

The previous prime is 1118893. The next prime is 1118911. The reversal of 1118897 is 7988111.

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 279841 + 839056 = 529^2 + 916^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118897 - 2² = 1118893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118893) 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, 43022 + ... + 43047.

It is an arithmetic number, because the mean of its divisors is an integer number (301245).

2^1118897 is an apocalyptic number.

It is an amenable number.

1118897 is a deficient number, since it is larger than the sum of its proper divisors (86083).

1118897 is an equidigital number, since it uses as much as digits as its factorization.

1118897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86082.

The product of its digits is 4032, while the sum is 35.

The square root of 1118897 is about 1057.7792775433. The cubic root of 1118897 is about 103.8157796433.

The spelling of 1118897 in words is "one million, one hundred eighteen thousand, eight hundred ninety-seven".