117709993 has 2 divisors, whose sum is σ = 117709994. Its totient is φ = 117709992.

The previous prime is 117709981. The next prime is 117710003. The reversal of 117709993 is 399907711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65480464 + 52229529 = 8092^2 + 7227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117709993 is a prime.

It is not a weakly prime, because it can be changed into another prime (117709903) 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, 58854996 + 58854997.

It is an arithmetic number, because the mean of its divisors is an integer number (58854997).

Almost surely, 2^117709993 is an apocalyptic number.

It is an amenable number.

117709993 is a deficient number, since it is larger than the sum of its proper divisors (1).

117709993 is an equidigital number, since it uses as much as digits as its factorization.

117709993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107163, while the sum is 46.

The square root of 117709993 is about 10849.4236252439. The cubic root of 117709993 is about 490.0846625889.

The spelling of 117709993 in words is "one hundred seventeen million, seven hundred nine thousand, nine hundred ninety-three".