898889 has 2 divisors, whose sum is σ = 898890. Its totient is φ = 898888.

The previous prime is 898873. The next prime is 898897. The reversal of 898889 is 988898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 855625 + 43264 = 925^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 898889 - 2⁴ = 898873 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (898819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449444 + 449445.

It is an arithmetic number, because the mean of its divisors is an integer number (449445).

2⁸⁹⁸⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

898889 is a deficient number, since it is larger than the sum of its proper divisors (1).

898889 is an equidigital number, since it uses as much as digits as its factorization.

898889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 50.

The square root of 898889 is about 948.0975688187. The cubic root of 898889 is about 96.5091940017.

Subtracting 898889 from its reverse (988898), we obtain a palindrome (90009).

The spelling of 898889 in words is "eight hundred ninety-eight thousand, eight hundred eighty-nine".