606565 has 4 divisors (see below), whose sum is σ = 727884. Its totient is φ = 485248.

The previous prime is 606559. The next prime is 606569. The reversal of 606565 is 565606.

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 343396 + 263169 = 586^2 + 513^2 .

It is a cyclic number.

It is not a de Polignac number, because 606565 - 2¹¹ = 604517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606569) 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, 60652 + ... + 60661.

It is an arithmetic number, because the mean of its divisors is an integer number (181971).

2⁶⁰⁶⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

606565 is a deficient number, since it is larger than the sum of its proper divisors (121319).

606565 is a wasteful number, since it uses less digits than its factorization.

606565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121318.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 606565 is about 778.8228296603. The cubic root of 606565 is about 84.6497699833.

The spelling of 606565 in words is "six hundred six thousand, five hundred sixty-five".