1117939 has 2 divisors, whose sum is σ = 1117940. Its totient is φ = 1117938.

The previous prime is 1117933. The next prime is 1117943. The reversal of 1117939 is 9397111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1117939 - 2³ = 1117931 is a prime.

1117939 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117939.

It is not a weakly prime, because it can be changed into another prime (1117931) 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, 558969 + 558970.

It is an arithmetic number, because the mean of its divisors is an integer number (558970).

2^1117939 is an apocalyptic number.

1117939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117939 is an equidigital number, since it uses as much as digits as its factorization.

1117939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1701, while the sum is 31.

The square root of 1117939 is about 1057.3263450799. The cubic root of 1117939 is about 103.7861421476.

The spelling of 1117939 in words is "one million, one hundred seventeen thousand, nine hundred thirty-nine".