328384477 has 2 divisors, whose sum is σ = 328384478. Its totient is φ = 328384476.

The previous prime is 328384471. The next prime is 328384493. The reversal of 328384477 is 774483823.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316626436 + 11758041 = 17794^2 + 3429^2 .

It is an emirp because it is prime and its reverse (774483823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328384477 - 2⁷ = 328384349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328384471) 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, 164192238 + 164192239.

It is an arithmetic number, because the mean of its divisors is an integer number (164192239).

Almost surely, 2^328384477 is an apocalyptic number.

It is an amenable number.

328384477 is a deficient number, since it is larger than the sum of its proper divisors (1).

328384477 is an equidigital number, since it uses as much as digits as its factorization.

328384477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 46.

The square root of 328384477 is about 18121.3817629893. The cubic root of 328384477 is about 689.9128063173.

The spelling of 328384477 in words is "three hundred twenty-eight million, three hundred eighty-four thousand, four hundred seventy-seven".