326947013 has 2 divisors, whose sum is σ = 326947014. Its totient is φ = 326947012.

The previous prime is 326946989. The next prime is 326947031. The reversal of 326947013 is 310749623.

Together with next prime (326947031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238455364 + 88491649 = 15442^2 + 9407^2 .

It is an emirp because it is prime and its reverse (310749623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326947013 - 2¹⁴ = 326930629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326947063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163473506 + 163473507.

It is an arithmetic number, because the mean of its divisors is an integer number (163473507).

Almost surely, 2^326947013 is an apocalyptic number.

It is an amenable number.

326947013 is a deficient number, since it is larger than the sum of its proper divisors (1).

326947013 is an equidigital number, since it uses as much as digits as its factorization.

326947013 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 35.

The square root of 326947013 is about 18081.6761667717. The cubic root of 326947013 is about 688.9046634506.

The spelling of 326947013 in words is "three hundred twenty-six million, nine hundred forty-seven thousand, thirteen".