328609375 has 14 divisors (see below), whose sum is σ = 410775992. Its totient is φ = 262875000.

The previous prime is 328609373. The next prime is 328609399. The reversal of 328609375 is 573906823.

It is not a de Polignac number, because 328609375 - 2¹ = 328609373 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328609373) 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 in 13 ways as a sum of consecutive naturals, for example, 5110 + ... + 26140.

Almost surely, 2^328609375 is an apocalyptic number.

328609375 is a deficient number, since it is larger than the sum of its proper divisors (82166617).

328609375 is an frugal number, since it uses more digits than its factorization.

328609375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21061 (or 21036 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 328609375 is about 18127.5860224135. The cubic root of 328609375 is about 690.0702686961.

The spelling of 328609375 in words is "three hundred twenty-eight million, six hundred nine thousand, three hundred seventy-five".