326564461 has 2 divisors, whose sum is σ = 326564462. Its totient is φ = 326564460.

The previous prime is 326564453. The next prime is 326564471. The reversal of 326564461 is 164465623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309548836 + 17015625 = 17594^2 + 4125^2 .

It is a cyclic number.

It is not a de Polignac number, because 326564461 - 2³ = 326564453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 326564461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326564471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163282230 + 163282231.

It is an arithmetic number, because the mean of its divisors is an integer number (163282231).

Almost surely, 2^326564461 is an apocalyptic number.

It is an amenable number.

326564461 is a deficient number, since it is larger than the sum of its proper divisors (1).

326564461 is an equidigital number, since it uses as much as digits as its factorization.

326564461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 326564461 is about 18071.0946265023. The cubic root of 326564461 is about 688.6358689151.

The spelling of 326564461 in words is "three hundred twenty-six million, five hundred sixty-four thousand, four hundred sixty-one".