655685323 has 2 divisors, whose sum is σ = 655685324. Its totient is φ = 655685322.

The previous prime is 655685221. The next prime is 655685341. The reversal of 655685323 is 323586556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655685323 - 2²⁵ = 622130891 is a prime.

It is a super-2 number, since 2×655685323² = 859846485595228658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 655685323.

It is not a weakly prime, because it can be changed into another prime (655685423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327842661 + 327842662.

It is an arithmetic number, because the mean of its divisors is an integer number (327842662).

Almost surely, 2^655685323 is an apocalyptic number.

655685323 is a deficient number, since it is larger than the sum of its proper divisors (1).

655685323 is an equidigital number, since it uses as much as digits as its factorization.

655685323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 43.

The square root of 655685323 is about 25606.3531765068. The cubic root of 655685323 is about 868.7573411522.

The spelling of 655685323 in words is "six hundred fifty-five million, six hundred eighty-five thousand, three hundred twenty-three".