1328017393 has 2 divisors, whose sum is σ = 1328017394. Its totient is φ = 1328017392.

The previous prime is 1328017391. The next prime is 1328017423. The reversal of 1328017393 is 3937108231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144333584 + 183683809 = 33828^2 + 13553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328017393 - 2¹ = 1328017391 is a prime.

It is a super-2 number, since 2×1328017393² = 3527260392221032898, which contains 22 as substring.

Together with 1328017391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1328017391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664008696 + 664008697.

It is an arithmetic number, because the mean of its divisors is an integer number (664008697).

Almost surely, 2^1328017393 is an apocalyptic number.

It is an amenable number.

1328017393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328017393 is an equidigital number, since it uses as much as digits as its factorization.

1328017393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 1328017393 is about 36441.9729570176. The cubic root of 1328017393 is about 1099.1777306714.

The spelling of 1328017393 in words is "one billion, three hundred twenty-eight million, seventeen thousand, three hundred ninety-three".