328400173 has 2 divisors, whose sum is σ = 328400174. Its totient is φ = 328400172.

The previous prime is 328400167. The next prime is 328400179. The reversal of 328400173 is 371004823.

It is a balanced prime because it is at equal distance from previous prime (328400167) and next prime (328400179).

It can be written as a sum of positive squares in only one way, i.e., 320660649 + 7739524 = 17907^2 + 2782^2 .

It is a cyclic number.

It is not a de Polignac number, because 328400173 - 2¹³ = 328391981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328400179) 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, 164200086 + 164200087.

It is an arithmetic number, because the mean of its divisors is an integer number (164200087).

Almost surely, 2^328400173 is an apocalyptic number.

It is an amenable number.

328400173 is a deficient number, since it is larger than the sum of its proper divisors (1).

328400173 is an equidigital number, since it uses as much as digits as its factorization.

328400173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 328400173 is about 18121.8148373721. The cubic root of 328400173 is about 689.9237982080.

Adding to 328400173 its reverse (371004823), we get a palindrome (699404996).

The spelling of 328400173 in words is "three hundred twenty-eight million, four hundred thousand, one hundred seventy-three".