117177689 has 2 divisors, whose sum is σ = 117177690. Its totient is φ = 117177688.

The previous prime is 117177677. The next prime is 117177703. The reversal of 117177689 is 986771711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 6086089 = 10540^2 + 2467^2 .

It is an emirp because it is prime and its reverse (986771711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117177689 - 2¹² = 117173593 is a prime.

It is a super-2 number, since 2×117177689² = 27461221598761442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117174689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58588844 + 58588845.

It is an arithmetic number, because the mean of its divisors is an integer number (58588845).

Almost surely, 2^117177689 is an apocalyptic number.

It is an amenable number.

117177689 is a deficient number, since it is larger than the sum of its proper divisors (1).

117177689 is an equidigital number, since it uses as much as digits as its factorization.

117177689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 47.

The square root of 117177689 is about 10824.8643871413. The cubic root of 117177689 is about 489.3447983147.

The spelling of 117177689 in words is "one hundred seventeen million, one hundred seventy-seven thousand, six hundred eighty-nine".