327620961 has 12 divisors (see below), whose sum is σ = 475213440. Its totient is φ = 217498680.

The previous prime is 327620959. The next prime is 327620981. The reversal of 327620961 is 169026723.

327620961 is a `hidden beast` number, since 3 + 27 + 620 + 9 + 6 + 1 = 666.

It is not a de Polignac number, because 327620961 - 2¹ = 327620959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (327620981) 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 in 11 ways as a sum of consecutive naturals, for example, 74005 + ... + 78306.

It is an arithmetic number, because the mean of its divisors is an integer number (39601120).

Almost surely, 2^327620961 is an apocalyptic number.

It is an amenable number.

327620961 is a deficient number, since it is larger than the sum of its proper divisors (147592479).

327620961 is a wasteful number, since it uses less digits than its factorization.

327620961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152556 (or 152553 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 327620961 is about 18100.3027875226. The cubic root of 327620961 is about 689.3776934829.

The spelling of 327620961 in words is "three hundred twenty-seven million, six hundred twenty thousand, nine hundred sixty-one".