327563813 has 2 divisors, whose sum is σ = 327563814. Its totient is φ = 327563812.

The previous prime is 327563771. The next prime is 327563851. The reversal of 327563813 is 318365723.

It is an a-pointer prime, because the next prime (327563851) can be obtained adding 327563813 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324612289 + 2951524 = 18017^2 + 1718^2 .

It is a cyclic number.

It is not a de Polignac number, because 327563813 - 2¹⁰ = 327562789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327563893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163781906 + 163781907.

It is an arithmetic number, because the mean of its divisors is an integer number (163781907).

Almost surely, 2^327563813 is an apocalyptic number.

It is an amenable number.

327563813 is a deficient number, since it is larger than the sum of its proper divisors (1).

327563813 is an equidigital number, since it uses as much as digits as its factorization.

327563813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 327563813 is about 18098.7240710499. The cubic root of 327563813 is about 689.3376076805.

The spelling of 327563813 in words is "three hundred twenty-seven million, five hundred sixty-three thousand, eight hundred thirteen".