328076191 has 2 divisors, whose sum is σ = 328076192. Its totient is φ = 328076190.

The previous prime is 328076143. The next prime is 328076227. The reversal of 328076191 is 191670823.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328076191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328076191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328076291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164038095 + 164038096.

It is an arithmetic number, because the mean of its divisors is an integer number (164038096).

Almost surely, 2^328076191 is an apocalyptic number.

328076191 is a deficient number, since it is larger than the sum of its proper divisors (1).

328076191 is an equidigital number, since it uses as much as digits as its factorization.

328076191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 328076191 is about 18112.8736262361. The cubic root of 328076191 is about 689.6968429505.

The spelling of 328076191 in words is "three hundred twenty-eight million, seventy-six thousand, one hundred ninety-one".