89173361 has 4 divisors (see below), whose sum is σ = 90092772. Its totient is φ = 88253952.

The previous prime is 89173351. The next prime is 89173379. The reversal of 89173361 is 16337198.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16337198 = 2 ⋅8168599.

It can be written as a sum of positive squares in 2 ways, for example, as 13830961 + 75342400 = 3719^2 + 8680^2 .

It is a cyclic number.

It is not a de Polignac number, because 89173361 - 2⁶ = 89173297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89173351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459560 + ... + 459753.

It is an arithmetic number, because the mean of its divisors is an integer number (22523193).

Almost surely, 2^89173361 is an apocalyptic number.

It is an amenable number.

89173361 is a deficient number, since it is larger than the sum of its proper divisors (919411).

89173361 is an equidigital number, since it uses as much as digits as its factorization.

89173361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919410.

The product of its digits is 27216, while the sum is 38.

The square root of 89173361 is about 9443.1647767049. The cubic root of 89173361 is about 446.7642139245.

The spelling of 89173361 in words is "eighty-nine million, one hundred seventy-three thousand, three hundred sixty-one".