655608 has 32 divisors (see below), whose sum is σ = 1670400. Its totient is φ = 214368.

The previous prime is 655601. The next prime is 655637. The reversal of 655608 is 806556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655601) 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 7 ways as a sum of consecutive naturals, for example, 1185 + ... + 1647.

It is an arithmetic number, because the mean of its divisors is an integer number (52200).

2⁶⁵⁵⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835200).

655608 is an abundant number, since it is smaller than the sum of its proper divisors (1014792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655608 is a wasteful number, since it uses less digits than its factorization.

655608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 655608 is about 809.6962393392. The cubic root of 655608 is about 86.8723189829.

The spelling of 655608 in words is "six hundred fifty-five thousand, six hundred eight".