1328330671 has 2 divisors, whose sum is σ = 1328330672. Its totient is φ = 1328330670.

The previous prime is 1328330657. The next prime is 1328330777. The reversal of 1328330671 is 1760338231.

It is a weak prime.

It is an emirp because it is prime and its reverse (1760338231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1328330671 - 2⁵ = 1328330639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328330651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664165335 + 664165336.

It is an arithmetic number, because the mean of its divisors is an integer number (664165336).

Almost surely, 2^1328330671 is an apocalyptic number.

1328330671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328330671 is an equidigital number, since it uses as much as digits as its factorization.

1328330671 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 34.

The square root of 1328330671 is about 36446.2710163879. The cubic root of 1328330671 is about 1099.2641555254.

The spelling of 1328330671 in words is "one billion, three hundred twenty-eight million, three hundred thirty thousand, six hundred seventy-one".