328941947 has 2 divisors, whose sum is σ = 328941948. Its totient is φ = 328941946.

The previous prime is 328941941. The next prime is 328941989. The reversal of 328941947 is 749149823.

It is a weak prime.

It is an emirp because it is prime and its reverse (749149823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328941947 - 2²⁴ = 312164731 is a prime.

It is not a weakly prime, because it can be changed into another prime (328941941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164470973 + 164470974.

It is an arithmetic number, because the mean of its divisors is an integer number (164470974).

Almost surely, 2^328941947 is an apocalyptic number.

328941947 is a deficient number, since it is larger than the sum of its proper divisors (1).

328941947 is an equidigital number, since it uses as much as digits as its factorization.

328941947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 328941947 is about 18136.7567938703. The cubic root of 328941947 is about 690.3029874279.

The spelling of 328941947 in words is "three hundred twenty-eight million, nine hundred forty-one thousand, nine hundred forty-seven".