1118417 has 4 divisors (see below), whose sum is σ = 1122816. Its totient is φ = 1114020.

The previous prime is 1118393. The next prime is 1118419. The reversal of 1118417 is 7148111.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7148111 = 109 ⋅65579.

It is a cyclic number.

It is not a de Polignac number, because 1118417 - 2¹⁶ = 1052881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1118392 and 1118401.

It is not an unprimeable number, because it can be changed into a prime (1118419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1793 + ... + 2334.

It is an arithmetic number, because the mean of its divisors is an integer number (280704).

2^1118417 is an apocalyptic number.

It is an amenable number.

1118417 is a deficient number, since it is larger than the sum of its proper divisors (4399).

1118417 is an equidigital number, since it uses as much as digits as its factorization.

1118417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398.

The product of its digits is 224, while the sum is 23.

The square root of 1118417 is about 1057.5523627698. The cubic root of 1118417 is about 103.8009320741.

The spelling of 1118417 in words is "one million, one hundred eighteen thousand, four hundred seventeen".