655859 has 2 divisors, whose sum is σ = 655860. Its totient is φ = 655858.

The previous prime is 655849. The next prime is 655883. The reversal of 655859 is 958556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655859 - 2¹⁶ = 590323 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655859.

It is not a weakly prime, because it can be changed into another prime (655849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327929 + 327930.

It is an arithmetic number, because the mean of its divisors is an integer number (327930).

2⁶⁵⁵⁸⁵⁹ is an apocalyptic number.

655859 is a deficient number, since it is larger than the sum of its proper divisors (1).

655859 is an equidigital number, since it uses as much as digits as its factorization.

655859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 38.

The square root of 655859 is about 809.8512209042. The cubic root of 655859 is about 86.8834039452.

The spelling of 655859 in words is "six hundred fifty-five thousand, eight hundred fifty-nine".