328905377 has 2 divisors, whose sum is σ = 328905378. Its totient is φ = 328905376.

The previous prime is 328905349. The next prime is 328905407. The reversal of 328905377 is 773509823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276357376 + 52548001 = 16624^2 + 7249^2 .

It is a cyclic number.

It is not a de Polignac number, because 328905377 - 2²⁰ = 327856801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328905337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164452688 + 164452689.

It is an arithmetic number, because the mean of its divisors is an integer number (164452689).

Almost surely, 2^328905377 is an apocalyptic number.

It is an amenable number.

328905377 is a deficient number, since it is larger than the sum of its proper divisors (1).

328905377 is an equidigital number, since it uses as much as digits as its factorization.

328905377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 328905377 is about 18135.7485922142. The cubic root of 328905377 is about 690.2774050863.

The spelling of 328905377 in words is "three hundred twenty-eight million, nine hundred five thousand, three hundred seventy-seven".