598321 has 4 divisors (see below), whose sum is σ = 599872. Its totient is φ = 596772.

The previous prime is 598307. The next prime is 598333. The reversal of 598321 is 123895.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 598321 - 2⁷ = 598193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 598321.

It is not an unprimeable number, because it can be changed into a prime (598421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (149968).

2⁵⁹⁸³²¹ is an apocalyptic number.

It is an amenable number.

598321 is a deficient number, since it is larger than the sum of its proper divisors (1551).

598321 is an equidigital number, since it uses as much as digits as its factorization.

598321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550.

The product of its digits is 2160, while the sum is 28.

The square root of 598321 is about 773.5121201378. The cubic root of 598321 is about 84.2645195062.

It can be divided in two parts, 598 and 321, that added together give a palindrome (919).

The spelling of 598321 in words is "five hundred ninety-eight thousand, three hundred twenty-one".