605839 has 8 divisors (see below), whose sum is σ = 675360. Its totient is φ = 539616.

The previous prime is 605837. The next prime is 605849. The reversal of 605839 is 938506.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 605839 - 2¹ = 605837 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 605839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427 + ... + 1180.

It is an arithmetic number, because the mean of its divisors is an integer number (84420).

2⁶⁰⁵⁸³⁹ is an apocalyptic number.

605839 is a deficient number, since it is larger than the sum of its proper divisors (69521).

605839 is a wasteful number, since it uses less digits than its factorization.

605839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 605839 is about 778.3566020790. The cubic root of 605839 is about 84.6159839542.

It can be divided in two parts, 605 and 839, that added together give a square (1444 = 38²).

The spelling of 605839 in words is "six hundred five thousand, eight hundred thirty-nine".