598664 has 16 divisors (see below), whose sum is σ = 1224720. Its totient is φ = 272080.

The previous prime is 598657. The next prime is 598669. The reversal of 598664 is 466895.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (598669) 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, 3314 + ... + 3489.

It is an arithmetic number, because the mean of its divisors is an integer number (76545).

2⁵⁹⁸⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

598664 is an abundant number, since it is smaller than the sum of its proper divisors (626056).

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

598664 is a wasteful number, since it uses less digits than its factorization.

598664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820 (or 6816 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 598664 is about 773.7338043539. The cubic root of 598664 is about 84.2806185617.

Subtracting from 598664 its reverse (466895), we obtain a square (131769 = 363²).

The spelling of 598664 in words is "five hundred ninety-eight thousand, six hundred sixty-four".