89708173 has 4 divisors (see below), whose sum is σ = 90716220. Its totient is φ = 88700128.

The previous prime is 89708161. The next prime is 89708183. The reversal of 89708173 is 37180798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8311689 + 81396484 = 2883^2 + 9022^2 .

It is a cyclic number.

It is not a de Polignac number, because 89708173 - 2²¹ = 87611021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89708183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503890 + ... + 504067.

It is an arithmetic number, because the mean of its divisors is an integer number (22679055).

Almost surely, 2^89708173 is an apocalyptic number.

It is an amenable number.

89708173 is a deficient number, since it is larger than the sum of its proper divisors (1008047).

89708173 is a wasteful number, since it uses less digits than its factorization.

89708173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008046.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 89708173 is about 9471.4398588599. The cubic root of 89708173 is about 447.6555817028.

The spelling of 89708173 in words is "eighty-nine million, seven hundred eight thousand, one hundred seventy-three".