655684327 has 2 divisors, whose sum is σ = 655684328. Its totient is φ = 655684326.

The previous prime is 655684277. The next prime is 655684331. The reversal of 655684327 is 723486556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655684327 - 2⁷ = 655684199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655682327) 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, 327842163 + 327842164.

It is an arithmetic number, because the mean of its divisors is an integer number (327842164).

Almost surely, 2^655684327 is an apocalyptic number.

655684327 is a deficient number, since it is larger than the sum of its proper divisors (1).

655684327 is an equidigital number, since it uses as much as digits as its factorization.

655684327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 46.

The square root of 655684327 is about 25606.3337282009. Note that the first 3 decimals coincide. The cubic root of 655684327 is about 868.7569012650.

The spelling of 655684327 in words is "six hundred fifty-five million, six hundred eighty-four thousand, three hundred twenty-seven".