327634961 has 2 divisors, whose sum is σ = 327634962. Its totient is φ = 327634960.

The previous prime is 327634943. The next prime is 327634987. The reversal of 327634961 is 169436723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325441600 + 2193361 = 18040^2 + 1481^2 .

It is a cyclic number.

It is not a de Polignac number, because 327634961 - 2¹⁰ = 327633937 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (327634991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163817480 + 163817481.

It is an arithmetic number, because the mean of its divisors is an integer number (163817481).

Almost surely, 2^327634961 is an apocalyptic number.

It is an amenable number.

327634961 is a deficient number, since it is larger than the sum of its proper divisors (1).

327634961 is an equidigital number, since it uses as much as digits as its factorization.

327634961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 327634961 is about 18100.6895172532. The cubic root of 327634961 is about 689.3875129098.

The spelling of 327634961 in words is "three hundred twenty-seven million, six hundred thirty-four thousand, nine hundred sixty-one".