1117443 has 4 divisors (see below), whose sum is σ = 1489928. Its totient is φ = 744960.

The previous prime is 1117439. The next prime is 1117451. The reversal of 1117443 is 3447111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3447111 = 3 ⋅1149037.

It is not a de Polignac number, because 1117443 - 2² = 1117439 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117433) 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, 186238 + ... + 186243.

It is an arithmetic number, because the mean of its divisors is an integer number (372482).

2^1117443 is an apocalyptic number.

1117443 is a deficient number, since it is larger than the sum of its proper divisors (372485).

1117443 is an equidigital number, since it uses as much as digits as its factorization.

1117443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372484.

The product of its digits is 336, while the sum is 21.

The square root of 1117443 is about 1057.0917651746. The cubic root of 1117443 is about 103.7707908206.

The spelling of 1117443 in words is "one million, one hundred seventeen thousand, four hundred forty-three".