898689 has 16 divisors (see below), whose sum is σ = 1324224. Its totient is φ = 537600.

The previous prime is 898673. The next prime is 898691. The reversal of 898689 is 986898.

898689 = 27² + 28² + ... + 139².

898689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 898689 - 2⁴ = 898673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (898669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3609 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (82764).

2⁸⁹⁸⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

898689 is a deficient number, since it is larger than the sum of its proper divisors (425535).

898689 is a wasteful number, since it uses less digits than its factorization.

898689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368.

The product of its digits is 248832, while the sum is 48.

The square root of 898689 is about 947.9920885746. The cubic root of 898689 is about 96.5020358059.

Subtracting 898689 from its reverse (986898), we obtain a square (88209 = 297²).

It can be divided in two parts, 89 and 8689, that added together give a palindrome (8778).

The spelling of 898689 in words is "eight hundred ninety-eight thousand, six hundred eighty-nine".