117316993 has 2 divisors, whose sum is σ = 117316994. Its totient is φ = 117316992.

The previous prime is 117316987. The next prime is 117317023. The reversal of 117316993 is 399613711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92794689 + 24522304 = 9633^2 + 4952^2 .

It is a cyclic number.

It is not a de Polignac number, because 117316993 - 2¹³ = 117308801 is a prime.

It is not a weakly prime, because it can be changed into another prime (117316093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58658496 + 58658497.

It is an arithmetic number, because the mean of its divisors is an integer number (58658497).

Almost surely, 2^117316993 is an apocalyptic number.

It is an amenable number.

117316993 is a deficient number, since it is larger than the sum of its proper divisors (1).

117316993 is an equidigital number, since it uses as much as digits as its factorization.

117316993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 40.

The square root of 117316993 is about 10831.2969214217. The cubic root of 117316993 is about 489.5386369570.

The spelling of 117316993 in words is "one hundred seventeen million, three hundred sixteen thousand, nine hundred ninety-three".