89897 has 2 divisors, whose sum is σ = 89898. Its totient is φ = 89896.

The previous prime is 89891. The next prime is 89899. The reversal of 89897 is 79898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63001 + 26896 = 251^2 + 164^2 .

It is a cyclic number.

It is not a de Polignac number, because 89897 - 2⁶ = 89833 is a prime.

Together with 89899, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44948 + 44949.

It is an arithmetic number, because the mean of its divisors is an integer number (44949).

2⁸⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

89897 is a deficient number, since it is larger than the sum of its proper divisors (1).

89897 is an equidigital number, since it uses as much as digits as its factorization.

89897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 41.

The square root of 89897 is about 299.8282841895. The cubic root of 89897 is about 44.7969452105.

Subtracting from 89897 its reverse (79898), we obtain a palindrome (9999).

The spelling of 89897 in words is "eighty-nine thousand, eight hundred ninety-seven".