655885 has 8 divisors (see below), whose sum is σ = 804096. Its totient is φ = 513360.

The previous prime is 655883. The next prime is 655901. The reversal of 655885 is 588556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655885 - 2¹ = 655883 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 (655883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161 + ... + 1630.

It is an arithmetic number, because the mean of its divisors is an integer number (100512).

2⁶⁵⁵⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

655885 is a deficient number, since it is larger than the sum of its proper divisors (148211).

655885 is a wasteful number, since it uses less digits than its factorization.

655885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843.

The product of its digits is 48000, while the sum is 37.

The square root of 655885 is about 809.8672730763. The cubic root of 655885 is about 86.8845520267.

It can be divided in two parts, 655 and 885, that added together give a triangular number (1540 = T₅₅).

The spelling of 655885 in words is "six hundred fifty-five thousand, eight hundred eighty-five".