655047671 has 2 divisors, whose sum is σ = 655047672. Its totient is φ = 655047670.

The previous prime is 655047641. The next prime is 655047683. The reversal of 655047671 is 176740556.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655047671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655047641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327523835 + 327523836.

It is an arithmetic number, because the mean of its divisors is an integer number (327523836).

Almost surely, 2^655047671 is an apocalyptic number.

655047671 is a deficient number, since it is larger than the sum of its proper divisors (1).

655047671 is an equidigital number, since it uses as much as digits as its factorization.

655047671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 655047671 is about 25593.8990972458. The cubic root of 655047671 is about 868.4756285124.

The spelling of 655047671 in words is "six hundred fifty-five million, forty-seven thousand, six hundred seventy-one".