117984649 has 2 divisors, whose sum is σ = 117984650. Its totient is φ = 117984648.

The previous prime is 117984613. The next prime is 117984653. The reversal of 117984649 is 946489711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102657424 + 15327225 = 10132^2 + 3915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117984649 is a prime.

It is not a weakly prime, because it can be changed into another prime (117984049) 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, 58992324 + 58992325.

It is an arithmetic number, because the mean of its divisors is an integer number (58992325).

Almost surely, 2^117984649 is an apocalyptic number.

It is an amenable number.

117984649 is a deficient number, since it is larger than the sum of its proper divisors (1).

117984649 is an equidigital number, since it uses as much as digits as its factorization.

117984649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 117984649 is about 10862.0738811702. The cubic root of 117984649 is about 490.4655425603.

The spelling of 117984649 in words is "one hundred seventeen million, nine hundred eighty-four thousand, six hundred forty-nine".