326685361 has 2 divisors, whose sum is σ = 326685362. Its totient is φ = 326685360.

The previous prime is 326685343. The next prime is 326685371. The reversal of 326685361 is 163586623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167547136 + 159138225 = 12944^2 + 12615^2 .

It is an emirp because it is prime and its reverse (163586623) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326685361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (326685341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163342680 + 163342681.

It is an arithmetic number, because the mean of its divisors is an integer number (163342681).

Almost surely, 2^326685361 is an apocalyptic number.

It is an amenable number.

326685361 is a deficient number, since it is larger than the sum of its proper divisors (1).

326685361 is an equidigital number, since it uses as much as digits as its factorization.

326685361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 326685361 is about 18074.4394380573. The cubic root of 326685361 is about 688.7208401988.

The spelling of 326685361 in words is "three hundred twenty-six million, six hundred eighty-five thousand, three hundred sixty-one".