117517693 has 2 divisors, whose sum is σ = 117517694. Its totient is φ = 117517692.

The previous prime is 117517691. The next prime is 117517721. The reversal of 117517693 is 396715711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117223929 + 293764 = 10827^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 117517693 - 2¹ = 117517691 is a prime.

Together with 117517691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117517691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58758846 + 58758847.

It is an arithmetic number, because the mean of its divisors is an integer number (58758847).

Almost surely, 2^117517693 is an apocalyptic number.

It is an amenable number.

117517693 is a deficient number, since it is larger than the sum of its proper divisors (1).

117517693 is an equidigital number, since it uses as much as digits as its factorization.

117517693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 40.

The square root of 117517693 is about 10840.5577808524. The cubic root of 117517693 is about 489.8176372616.

The spelling of 117517693 in words is "one hundred seventeen million, five hundred seventeen thousand, six hundred ninety-three".