117647617 has 2 divisors, whose sum is σ = 117647618. Its totient is φ = 117647616.

The previous prime is 117647611. The next prime is 117647653. The reversal of 117647617 is 716746711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97298496 + 20349121 = 9864^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 117647617 - 2³ = 117647609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117647617.

It is not a weakly prime, because it can be changed into another prime (117647611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58823808 + 58823809.

It is an arithmetic number, because the mean of its divisors is an integer number (58823809).

Almost surely, 2^117647617 is an apocalyptic number.

It is an amenable number.

117647617 is a deficient number, since it is larger than the sum of its proper divisors (1).

117647617 is an equidigital number, since it uses as much as digits as its factorization.

117647617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 40.

The square root of 117647617 is about 10846.5486215662. The cubic root of 117647617 is about 489.9980799592.

The spelling of 117647617 in words is "one hundred seventeen million, six hundred forty-seven thousand, six hundred seventeen".