117485993 has 2 divisors, whose sum is σ = 117485994. Its totient is φ = 117485992.

The previous prime is 117485983. The next prime is 117486007. The reversal of 117485993 is 399584711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109662784 + 7823209 = 10472^2 + 2797^2 .

It is a cyclic number.

It is not a de Polignac number, because 117485993 - 2⁸ = 117485737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (117485983) 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, 58742996 + 58742997.

It is an arithmetic number, because the mean of its divisors is an integer number (58742997).

Almost surely, 2^117485993 is an apocalyptic number.

It is an amenable number.

117485993 is a deficient number, since it is larger than the sum of its proper divisors (1).

117485993 is an equidigital number, since it uses as much as digits as its factorization.

117485993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 117485993 is about 10839.0955803517. The cubic root of 117485993 is about 489.7735910842.

The spelling of 117485993 in words is "one hundred seventeen million, four hundred eighty-five thousand, nine hundred ninety-three".