608509 has 12 divisors (see below), whose sum is σ = 689472. Its totient is φ = 536360.

The previous prime is 608497. The next prime is 608519. The reversal of 608509 is 905806.

It is not a de Polignac number, because 608509 - 2¹³ = 600317 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 (608519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5634 + ... + 5740.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2⁶⁰⁸⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

608509 is a deficient number, since it is larger than the sum of its proper divisors (80963).

608509 is a wasteful number, since it uses less digits than its factorization.

608509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 608509 is about 780.0698686656. The cubic root of 608509 is about 84.7401058170.

The spelling of 608509 in words is "six hundred eight thousand, five hundred nine".