655908 has 24 divisors (see below), whose sum is σ = 1669920. Its totient is φ = 198720.

The previous prime is 655901. The next prime is 655909. The reversal of 655908 is 809556.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (655901) by changing a digit.

655908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2353 + ... + 2616.

It is an arithmetic number, because the mean of its divisors is an integer number (69580).

2⁶⁵⁵⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

655908 is an abundant number, since it is smaller than the sum of its proper divisors (1014012).

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

655908 is a wasteful number, since it uses less digits than its factorization.

655908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987 (or 4985 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 655908 is about 809.8814728094. The cubic root of 655908 is about 86.8855676119.

The spelling of 655908 in words is "six hundred fifty-five thousand, nine hundred eight".