605730239 has 4 divisors (see below), whose sum is σ = 608087424. Its totient is φ = 603373056.

The previous prime is 605730157. The next prime is 605730253. The reversal of 605730239 is 932037506.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 605730239 - 2²⁰ = 604681663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 605730199 and 605730208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605730299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178207 + ... + 1178720.

It is an arithmetic number, because the mean of its divisors is an integer number (152021856).

Almost surely, 2^605730239 is an apocalyptic number.

605730239 is a deficient number, since it is larger than the sum of its proper divisors (2357185).

605730239 is a wasteful number, since it uses less digits than its factorization.

605730239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357184.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 605730239 is about 24611.5874945116. The cubic root of 605730239 is about 846.1092019427.

The spelling of 605730239 in words is "six hundred five million, seven hundred thirty thousand, two hundred thirty-nine".