655344 has 80 divisors (see below), whose sum is σ = 1979040. Its totient is φ = 207360.

The previous prime is 655337. The next prime is 655351. The reversal of 655344 is 443556.

655344 is a `hidden beast` number, since 655 + 3 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (655337) and next prime (655351).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

655344 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15964 + ... + 16004.

It is an arithmetic number, because the mean of its divisors is an integer number (24738).

2⁶⁵⁵³⁴⁴ 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 655344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989520).

655344 is an abundant number, since it is smaller than the sum of its proper divisors (1323696).

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

655344 is a wasteful number, since it uses less digits than its factorization.

655344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 83 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 655344 is about 809.5331988251. The cubic root of 655344 is about 86.8606568457.

It can be divided in two parts, 655 and 344, that added together give a palindrome (999).

The spelling of 655344 in words is "six hundred fifty-five thousand, three hundred forty-four".