898559 has 4 divisors (see below), whose sum is σ = 900504. Its totient is φ = 896616.

The previous prime is 898553. The next prime is 898561. The reversal of 898559 is 955898.

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

It is a cyclic number.

It is not a de Polignac number, because 898559 - 2⁴ = 898543 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 (898553) 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, 164 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (225126).

2⁸⁹⁸⁵⁵⁹ is an apocalyptic number.

898559 is a deficient number, since it is larger than the sum of its proper divisors (1945).

898559 is a wasteful number, since it uses less digits than its factorization.

898559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its digits is 129600, while the sum is 44.

The square root of 898559 is about 947.9235201217. The cubic root of 898559 is about 96.4973824091.

The spelling of 898559 in words is "eight hundred ninety-eight thousand, five hundred fifty-nine".