89636039 has 2 divisors, whose sum is σ = 89636040. Its totient is φ = 89636038.

The previous prime is 89636021. The next prime is 89636047. The reversal of 89636039 is 93063698.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89636039 - 2²⁰ = 88587463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89636069) 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, 44818019 + 44818020.

It is an arithmetic number, because the mean of its divisors is an integer number (44818020).

Almost surely, 2^89636039 is an apocalyptic number.

89636039 is a deficient number, since it is larger than the sum of its proper divisors (1).

89636039 is an equidigital number, since it uses as much as digits as its factorization.

89636039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 89636039 is about 9467.6311187118. The cubic root of 89636039 is about 447.5355634793.

The spelling of 89636039 in words is "eighty-nine million, six hundred thirty-six thousand, thirty-nine".