89205217 has 4 divisors (see below), whose sum is σ = 91380996. Its totient is φ = 87029440.

The previous prime is 89205191. The next prime is 89205229. The reversal of 89205217 is 71250298.

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 36192256 + 53012961 = 6016^2 + 7281^2 .

It is a cyclic number.

It is not a de Polignac number, because 89205217 - 2⁷ = 89205089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89205287) 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, 1087828 + ... + 1087909.

It is an arithmetic number, because the mean of its divisors is an integer number (22845249).

Almost surely, 2^89205217 is an apocalyptic number.

It is an amenable number.

89205217 is a deficient number, since it is larger than the sum of its proper divisors (2175779).

89205217 is a wasteful number, since it uses less digits than its factorization.

89205217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175778.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 89205217 is about 9444.8513487508. The cubic root of 89205217 is about 446.8174077865.

The spelling of 89205217 in words is "eighty-nine million, two hundred five thousand, two hundred seventeen".