598985 has 4 divisors (see below), whose sum is σ = 718788. Its totient is φ = 479184.

The previous prime is 598981. The next prime is 598987. The reversal of 598985 is 589895.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589895 = 5 ⋅117979.

It can be written as a sum of positive squares in 2 ways, for example, as 466489 + 132496 = 683^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 598985 - 2² = 598981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 598985.

It is not an unprimeable number, because it can be changed into a prime (598981) 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, 59894 + ... + 59903.

It is an arithmetic number, because the mean of its divisors is an integer number (179697).

2⁵⁹⁸⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

598985 is a deficient number, since it is larger than the sum of its proper divisors (119803).

598985 is a wasteful number, since it uses less digits than its factorization.

598985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119802.

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

The square root of 598985 is about 773.9412122377. The cubic root of 598985 is about 84.2956794554.

The spelling of 598985 in words is "five hundred ninety-eight thousand, nine hundred eighty-five".