328924091 has 2 divisors, whose sum is σ = 328924092. Its totient is φ = 328924090.

The previous prime is 328924087. The next prime is 328924097. The reversal of 328924091 is 190429823.

It is a weak prime.

It is an emirp because it is prime and its reverse (190429823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328924091 - 2² = 328924087 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328924097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164462045 + 164462046.

It is an arithmetic number, because the mean of its divisors is an integer number (164462046).

Almost surely, 2^328924091 is an apocalyptic number.

328924091 is a deficient number, since it is larger than the sum of its proper divisors (1).

328924091 is an equidigital number, since it uses as much as digits as its factorization.

328924091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 328924091 is about 18136.2645271842. The cubic root of 328924091 is about 690.2904965986.

The spelling of 328924091 in words is "three hundred twenty-eight million, nine hundred twenty-four thousand, ninety-one".