605805385 has 4 divisors (see below), whose sum is σ = 726966468. Its totient is φ = 484644304.

The previous prime is 605805341. The next prime is 605805391. The reversal of 605805385 is 583508506.

605805385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 307932304 + 297873081 = 17548^2 + 17259^2 .

It is a cyclic number.

It is not a de Polignac number, because 605805385 - 2¹⁹ = 605281097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60580534 + ... + 60580543.

It is an arithmetic number, because the mean of its divisors is an integer number (181741617).

Almost surely, 2^605805385 is an apocalyptic number.

It is an amenable number.

605805385 is a deficient number, since it is larger than the sum of its proper divisors (121161083).

605805385 is a wasteful number, since it uses less digits than its factorization.

605805385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121161082.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 605805385 is about 24613.1140857877. The cubic root of 605805385 is about 846.1441895158.

The spelling of 605805385 in words is "six hundred five million, eight hundred five thousand, three hundred eighty-five".