328064947 has 12 divisors (see below), whose sum is σ = 385919640. Its totient is φ = 278035296.

The previous prime is 328064923. The next prime is 328064953. The reversal of 328064947 is 749460823.

It is not a de Polignac number, because 328064947 - 2²³ = 319676339 is a prime.

It is a super-2 number, since 2×328064947² = 215253218900225618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328068947) 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 in 11 ways as a sum of consecutive naturals, for example, 33253 + ... + 41974.

It is an arithmetic number, because the mean of its divisors is an integer number (32159970).

Almost surely, 2^328064947 is an apocalyptic number.

328064947 is a deficient number, since it is larger than the sum of its proper divisors (57854693).

328064947 is an equidigital number, since it uses as much as digits as its factorization.

328064947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75330 (or 75323 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 328064947 is about 18112.5632366046. The cubic root of 328064947 is about 689.6889636427.

The spelling of 328064947 in words is "three hundred twenty-eight million, sixty-four thousand, nine hundred forty-seven".