328646671 has 2 divisors, whose sum is σ = 328646672. Its totient is φ = 328646670.

The previous prime is 328646653. The next prime is 328646699. The reversal of 328646671 is 176646823.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 328646671 - 2¹¹ = 328644623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328646621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164323335 + 164323336.

It is an arithmetic number, because the mean of its divisors is an integer number (164323336).

Almost surely, 2^328646671 is an apocalyptic number.

328646671 is a deficient number, since it is larger than the sum of its proper divisors (1).

328646671 is an equidigital number, since it uses as much as digits as its factorization.

328646671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 328646671 is about 18128.6147016257. The cubic root of 328646671 is about 690.0963745521.

The spelling of 328646671 in words is "three hundred twenty-eight million, six hundred forty-six thousand, six hundred seventy-one".