1117943 has 2 divisors, whose sum is σ = 1117944. Its totient is φ = 1117942.

The previous prime is 1117939. The next prime is 1117967. The reversal of 1117943 is 3497111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1117943 - 2² = 1117939 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558971 + 558972.

It is an arithmetic number, because the mean of its divisors is an integer number (558972).

2^1117943 is an apocalyptic number.

1117943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117943 is an equidigital number, since it uses as much as digits as its factorization.

1117943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 26.

The square root of 1117943 is about 1057.3282366418. The cubic root of 1117943 is about 103.7862659301.

The spelling of 1117943 in words is "one million, one hundred seventeen thousand, nine hundred forty-three".