326561063 has 2 divisors, whose sum is σ = 326561064. Its totient is φ = 326561062.

The previous prime is 326561033. The next prime is 326561071. The reversal of 326561063 is 360165623.

It is a strong prime.

It is an emirp because it is prime and its reverse (360165623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326561063 - 2¹⁶ = 326495527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326561033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163280531 + 163280532.

It is an arithmetic number, because the mean of its divisors is an integer number (163280532).

Almost surely, 2^326561063 is an apocalyptic number.

326561063 is a deficient number, since it is larger than the sum of its proper divisors (1).

326561063 is an equidigital number, since it uses as much as digits as its factorization.

326561063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 326561063 is about 18071.0006087101. Note that the first 3 decimals coincide. The cubic root of 326561063 is about 688.6334804201.

The spelling of 326561063 in words is "three hundred twenty-six million, five hundred sixty-one thousand, sixty-three".