117876761 has 2 divisors, whose sum is σ = 117876762. Its totient is φ = 117876760.

The previous prime is 117876721. The next prime is 117876821. The reversal of 117876761 is 167678711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117852736 + 24025 = 10856^2 + 155^2 .

It is an emirp because it is prime and its reverse (167678711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117876761 - 2⁶ = 117876697 is a prime.

It is a super-2 number, since 2×117876761² = 27789861567702242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (117876721) 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, 58938380 + 58938381.

It is an arithmetic number, because the mean of its divisors is an integer number (58938381).

Almost surely, 2^117876761 is an apocalyptic number.

It is an amenable number.

117876761 is a deficient number, since it is larger than the sum of its proper divisors (1).

117876761 is an equidigital number, since it uses as much as digits as its factorization.

117876761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 44.

The square root of 117876761 is about 10857.1064745631. The cubic root of 117876761 is about 490.3159991405.

The spelling of 117876761 in words is "one hundred seventeen million, eight hundred seventy-six thousand, seven hundred sixty-one".