89665873 has 8 divisors (see below), whose sum is σ = 97886016. Its totient is φ = 81457200.

The previous prime is 89665867. The next prime is 89665889. The reversal of 89665873 is 37856698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89665873 - 2¹³ = 89657681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89665873.

It is not an unprimeable number, because it can be changed into a prime (89665853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27763 + ... + 30823.

It is an arithmetic number, because the mean of its divisors is an integer number (12235752).

Almost surely, 2^89665873 is an apocalyptic number.

It is an amenable number.

89665873 is a deficient number, since it is larger than the sum of its proper divisors (8220143).

89665873 is a wasteful number, since it uses less digits than its factorization.

89665873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5735.

The product of its digits is 2177280, while the sum is 52.

The square root of 89665873 is about 9469.2065665503. The cubic root of 89665873 is about 447.5852097864.

It can be divided in two parts, 8 and 9665873, that added together give a square (9665881 = 3109²).

The spelling of 89665873 in words is "eighty-nine million, six hundred sixty-five thousand, eight hundred seventy-three".