655345 has 8 divisors (see below), whose sum is σ = 801576. Its totient is φ = 514176.

The previous prime is 655337. The next prime is 655351. The reversal of 655345 is 543556.

It can be written as a sum of positive squares in 4 ways, for example, as 187489 + 467856 = 433^2 + 684^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 655345 - 2³ = 655337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (100197).

2⁶⁵⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

655345 is a deficient number, since it is larger than the sum of its proper divisors (146231).

655345 is a wasteful number, since it uses less digits than its factorization.

655345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531.

The product of its digits is 9000, while the sum is 28.

The square root of 655345 is about 809.5338164648. The cubic root of 655345 is about 86.8607010264.

It can be divided in two parts, 655 and 345, that added together give a cube (1000 = 10³).

The spelling of 655345 in words is "six hundred fifty-five thousand, three hundred forty-five".