328646653 has 2 divisors, whose sum is σ = 328646654. Its totient is φ = 328646652.

The previous prime is 328646621. The next prime is 328646671. The reversal of 328646653 is 356646823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192737689 + 135908964 = 13883^2 + 11658^2 .

It is a cyclic number.

It is not a de Polignac number, because 328646653 - 2⁵ = 328646621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328646953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164323326 + 164323327.

It is an arithmetic number, because the mean of its divisors is an integer number (164323327).

Almost surely, 2^328646653 is an apocalyptic number.

It is an amenable number.

328646653 is a deficient number, since it is larger than the sum of its proper divisors (1).

328646653 is an equidigital number, since it uses as much as digits as its factorization.

328646653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 43.

The square root of 328646653 is about 18128.6142051730. The cubic root of 328646653 is about 690.0963619533.

The spelling of 328646653 in words is "three hundred twenty-eight million, six hundred forty-six thousand, six hundred fifty-three".