89997169 has 2 divisors, whose sum is σ = 89997170. Its totient is φ = 89997168.

The previous prime is 89997163. The next prime is 89997181. The reversal of 89997169 is 96179998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69639025 + 20358144 = 8345^2 + 4512^2 .

It is a cyclic number.

It is not a de Polignac number, because 89997169 - 2¹⁵ = 89964401 is a prime.

It is a super-3 number, since 3×89997169³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (89997163) 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, 44998584 + 44998585.

It is an arithmetic number, because the mean of its divisors is an integer number (44998585).

Almost surely, 2^89997169 is an apocalyptic number.

It is an amenable number.

89997169 is a deficient number, since it is larger than the sum of its proper divisors (1).

89997169 is an equidigital number, since it uses as much as digits as its factorization.

89997169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 58.

The square root of 89997169 is about 9486.6837725308. The cubic root of 89997169 is about 448.1357757706.

The spelling of 89997169 in words is "eighty-nine million, nine hundred ninety-seven thousand, one hundred sixty-nine".