605984 has 24 divisors (see below), whose sum is σ = 1236060. Its totient is φ = 292096.

The previous prime is 605977. The next prime is 605987. The reversal of 605984 is 489506.

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 10000 = 772^2 + 100^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 605984.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 605984.

It is not an unprimeable number, because it can be changed into a prime (605987) by changing a digit.

605984 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602 + ... + 1254.

2⁶⁰⁵⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 605984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618030).

605984 is an abundant number, since it is smaller than the sum of its proper divisors (630076).

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

605984 is a wasteful number, since it uses less digits than its factorization.

605984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 605984 is about 778.4497414734. The cubic root of 605984 is about 84.6227340088.

The spelling of 605984 in words is "six hundred five thousand, nine hundred eighty-four".