327187432009 has 9 divisors (see below), whose sum is σ = 330956496327. Its totient is φ = 323460832464.

The previous prime is 327187432003. The next prime is 327187432049. The reversal of 327187432009 is 900234781723.

The square root of 327187432009 is 572003.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 62826926409 + 264360505600 = 250653^2 + 514160^2 .

It is not a de Polignac number, because 327187432009 - 2⁹ = 327187431497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 327187432009.

It is not an unprimeable number, because it can be changed into a prime (327187432003) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 50905054 + ... + 50911480.

Almost surely, 2^327187432009 is an apocalyptic number.

327187432009 is the 572003-rd square number.

327187432009 is the 286002-nd centered octagonal number.

It is an amenable number.

327187432009 is a deficient number, since it is larger than the sum of its proper divisors (3769064318).

327187432009 is an frugal number, since it uses more digits than its factorization.

327187432009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13032 (or 6516 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 327187432009 in words is "three hundred twenty-seven billion, one hundred eighty-seven million, four hundred thirty-two thousand, nine".