328268813 has 2 divisors, whose sum is σ = 328268814. Its totient is φ = 328268812.

The previous prime is 328268771. The next prime is 328268819. The reversal of 328268813 is 318862823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328261924 + 6889 = 18118^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 328268813 - 2⁸ = 328268557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328268819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164134406 + 164134407.

It is an arithmetic number, because the mean of its divisors is an integer number (164134407).

Almost surely, 2^328268813 is an apocalyptic number.

It is an amenable number.

328268813 is a deficient number, since it is larger than the sum of its proper divisors (1).

328268813 is an equidigital number, since it uses as much as digits as its factorization.

328268813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The square root of 328268813 is about 18118.1901138055. The cubic root of 328268813 is about 689.8317961487.

The spelling of 328268813 in words is "three hundred twenty-eight million, two hundred sixty-eight thousand, eight hundred thirteen".