328000073 has 2 divisors, whose sum is σ = 328000074. Its totient is φ = 328000072.

The previous prime is 328000069. The next prime is 328000081. The reversal of 328000073 is 370000823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315133504 + 12866569 = 17752^2 + 3587^2 .

It is a cyclic number.

It is not a de Polignac number, because 328000073 - 2² = 328000069 is a prime.

It is not a weakly prime, because it can be changed into another prime (328000273) 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, 164000036 + 164000037.

It is an arithmetic number, because the mean of its divisors is an integer number (164000037).

Almost surely, 2^328000073 is an apocalyptic number.

It is an amenable number.

328000073 is a deficient number, since it is larger than the sum of its proper divisors (1).

328000073 is an equidigital number, since it uses as much as digits as its factorization.

328000073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 328000073 is about 18110.7722916501. The cubic root of 328000073 is about 689.6434992391.

Adding to 328000073 its reverse (370000823), we get a palindrome (698000896).

The spelling of 328000073 in words is "three hundred twenty-eight million, seventy-three", and thus it is an aban number.