89636069 has 2 divisors, whose sum is σ = 89636070. Its totient is φ = 89636068.

The previous prime is 89636047. The next prime is 89636093. The reversal of 89636069 is 96063698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61936900 + 27699169 = 7870^2 + 5263^2 .

It is a cyclic number.

It is not a de Polignac number, because 89636069 - 2⁸ = 89635813 is a prime.

It is a super-2 number, since 2×89636069² = 16069249731545522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89636039) 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, 44818034 + 44818035.

It is an arithmetic number, because the mean of its divisors is an integer number (44818035).

Almost surely, 2^89636069 is an apocalyptic number.

It is an amenable number.

89636069 is a deficient number, since it is larger than the sum of its proper divisors (1).

89636069 is an equidigital number, since it uses as much as digits as its factorization.

89636069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 89636069 is about 9467.6327030573. The cubic root of 89636069 is about 447.5356134074.

The spelling of 89636069 in words is "eighty-nine million, six hundred thirty-six thousand, sixty-nine".