117764617 has 2 divisors, whose sum is σ = 117764618. Its totient is φ = 117764616.

The previous prime is 117764579. The next prime is 117764639. The reversal of 117764617 is 716467711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84713616 + 33051001 = 9204^2 + 5749^2 .

It is a cyclic number.

It is not a de Polignac number, because 117764617 - 2¹¹ = 117762569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117764617.

It is not a weakly prime, because it can be changed into another prime (117764417) 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, 58882308 + 58882309.

It is an arithmetic number, because the mean of its divisors is an integer number (58882309).

Almost surely, 2^117764617 is an apocalyptic number.

It is an amenable number.

117764617 is a deficient number, since it is larger than the sum of its proper divisors (1).

117764617 is an equidigital number, since it uses as much as digits as its factorization.

117764617 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 117764617 is about 10851.9407020127. The cubic root of 117764617 is about 490.1604597352.

The spelling of 117764617 in words is "one hundred seventeen million, seven hundred sixty-four thousand, six hundred seventeen".