117664317 has 6 divisors (see below), whose sum is σ = 169959582. Its totient is φ = 78442872.

The previous prime is 117664307. The next prime is 117664363. The reversal of 117664317 is 713466711.

117664317 is a `hidden beast` number, since 1 + 1 + 7 + 6 + 643 + 1 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 102030201 + 15634116 = 10101^2 + 3954^2 .

It is not a de Polignac number, because 117664317 - 2⁸ = 117664061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117664307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6536898 + ... + 6536915.

It is an arithmetic number, because the mean of its divisors is an integer number (28326597).

Almost surely, 2^117664317 is an apocalyptic number.

It is an amenable number.

117664317 is a deficient number, since it is larger than the sum of its proper divisors (52295265).

117664317 is a wasteful number, since it uses less digits than its factorization.

117664317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13073819 (or 13073816 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 117664317 is about 10847.3184243849. The cubic root of 117664317 is about 490.0212638280.

The spelling of 117664317 in words is "one hundred seventeen million, six hundred sixty-four thousand, three hundred seventeen".