326565397 has 2 divisors, whose sum is σ = 326565398. Its totient is φ = 326565396.

The previous prime is 326565373. The next prime is 326565443. The reversal of 326565397 is 793565623.

It is an a-pointer prime, because the next prime (326565443) can be obtained adding 326565397 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326561041 + 4356 = 18071^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 326565397 - 2¹⁹ = 326041109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326565097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163282698 + 163282699.

It is an arithmetic number, because the mean of its divisors is an integer number (163282699).

Almost surely, 2^326565397 is an apocalyptic number.

It is an amenable number.

326565397 is a deficient number, since it is larger than the sum of its proper divisors (1).

326565397 is an equidigital number, since it uses as much as digits as its factorization.

326565397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 46.

The square root of 326565397 is about 18071.1205241955. The cubic root of 326565397 is about 688.6365268379.

The spelling of 326565397 in words is "three hundred twenty-six million, five hundred sixty-five thousand, three hundred ninety-seven".