116636489 has 2 divisors, whose sum is σ = 116636490. Its totient is φ = 116636488.

The previous prime is 116636461. The next prime is 116636491. The reversal of 116636489 is 984636611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72812089 + 43824400 = 8533^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 116636489 - 2²⁴ = 99859273 is a prime.

Together with 116636491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116636449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58318244 + 58318245.

It is an arithmetic number, because the mean of its divisors is an integer number (58318245).

Almost surely, 2^116636489 is an apocalyptic number.

It is an amenable number.

116636489 is a deficient number, since it is larger than the sum of its proper divisors (1).

116636489 is an equidigital number, since it uses as much as digits as its factorization.

116636489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 116636489 is about 10799.8374524805. The cubic root of 116636489 is about 488.5902685098.

The spelling of 116636489 in words is "one hundred sixteen million, six hundred thirty-six thousand, four hundred eighty-nine".