598686 has 32 divisors (see below), whose sum is σ = 1340928. Its totient is φ = 176640.

The previous prime is 598681. The next prime is 598687. The reversal of 598686 is 686895.

Its product of digits (103680) is a multiple of the sum of its prime divisors (256).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (598681) 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, 3006 + ... + 3198.

It is an arithmetic number, because the mean of its divisors is an integer number (41904).

2⁵⁹⁸⁶⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 598686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670464).

598686 is an abundant number, since it is smaller than the sum of its proper divisors (742242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

598686 is a wasteful number, since it uses less digits than its factorization.

598686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256.

The product of its digits is 103680, while the sum is 42.

The square root of 598686 is about 773.7480209991. The cubic root of 598686 is about 84.2816509443.

Subtracting 598686 from its reverse (686895), we obtain a square (88209 = 297²).

The spelling of 598686 in words is "five hundred ninety-eight thousand, six hundred eighty-six".