328813 has 2 divisors, whose sum is σ = 328814. Its totient is φ = 328812.

The previous prime is 328789. The next prime is 328829. The reversal of 328813 is 318823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328329 + 484 = 573^2 + 22^2 .

It is an emirp because it is prime and its reverse (318823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328813 - 2⁵ = 328781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164406 + 164407.

It is an arithmetic number, because the mean of its divisors is an integer number (164407).

2³²⁸⁸¹³ is an apocalyptic number.

It is an amenable number.

328813 is a deficient number, since it is larger than the sum of its proper divisors (1).

328813 is an equidigital number, since it uses as much as digits as its factorization.

328813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 328813 is about 573.4221830379. The cubic root of 328813 is about 69.0212774820.

The spelling of 328813 in words is "three hundred twenty-eight thousand, eight hundred thirteen".