609285 has 16 divisors (see below), whose sum is σ = 984960. Its totient is φ = 321600.

The previous prime is 609283. The next prime is 609289. The reversal of 609285 is 582906.

It is not a de Polignac number, because 609285 - 2¹ = 609283 is a prime.

It is a super-2 number, since 2×609285² = 742456422450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 609285.

It is not an unprimeable number, because it can be changed into a prime (609283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2131 + ... + 2399.

It is an arithmetic number, because the mean of its divisors is an integer number (61560).

2⁶⁰⁹²⁸⁵ is an apocalyptic number.

It is an amenable number.

609285 is a deficient number, since it is larger than the sum of its proper divisors (375675).

609285 is a wasteful number, since it uses less digits than its factorization.

609285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 609285 is about 780.5671015358. The cubic root of 609285 is about 84.7761120712.

The spelling of 609285 in words is "six hundred nine thousand, two hundred eighty-five".