89197 has 4 divisors (see below), whose sum is σ = 89856. Its totient is φ = 88540.

The previous prime is 89189. The next prime is 89203. The reversal of 89197 is 79198.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 89197 - 2³ = 89189 is a prime.

It is a super-2 number, since 2×89197² = 15912209618, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89107) 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, 43 + ... + 424.

It is an arithmetic number, because the mean of its divisors is an integer number (22464).

2⁸⁹¹⁹⁷ is an apocalyptic number.

It is an amenable number.

89197 is a deficient number, since it is larger than the sum of its proper divisors (659).

89197 is a wasteful number, since it uses less digits than its factorization.

89197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its digits is 4536, while the sum is 34.

The square root of 89197 is about 298.6586680477. The cubic root of 89197 is about 44.6803688068.

Subtracting from 89197 its reverse (79198), we obtain a palindrome (9999).

The spelling of 89197 in words is "eighty-nine thousand, one hundred ninety-seven".