1118717 has 2 divisors, whose sum is σ = 1118718. Its totient is φ = 1118716.

The previous prime is 1118713. The next prime is 1118723. The reversal of 1118717 is 7178111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 811801 + 306916 = 901^2 + 554^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118717 - 2² = 1118713 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559358 + 559359.

It is an arithmetic number, because the mean of its divisors is an integer number (559359).

2^1118717 is an apocalyptic number.

It is an amenable number.

1118717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118717 is an equidigital number, since it uses as much as digits as its factorization.

1118717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 392, while the sum is 26.

The square root of 1118717 is about 1057.6941902081. The cubic root of 1118717 is about 103.8102123025.

The spelling of 1118717 in words is "one million, one hundred eighteen thousand, seven hundred seventeen".