327609 has 12 divisors (see below), whose sum is σ = 479700. Its totient is φ = 215424.

The previous prime is 327599. The next prime is 327619. The reversal of 327609 is 906723.

It is an interprime number because it is at equal distance from previous prime (327599) and next prime (327619).

It can be written as a sum of positive squares in 2 ways, for example, as 189225 + 138384 = 435^2 + 372^2 .

It is a de Polignac number, because none of the positive numbers 2^k-327609 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 2¹⁵ + 6² + 7⁶ + 0 + 9 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 597 + ... + 1005.

It is an arithmetic number, because the mean of its divisors is an integer number (39975).

2³²⁷⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

327609 is a deficient number, since it is larger than the sum of its proper divisors (152091).

327609 is a wasteful number, since it uses less digits than its factorization.

327609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 327609 is about 572.3713829324. The cubic root of 327609 is about 68.9369303964.

The spelling of 327609 in words is "three hundred twenty-seven thousand, six hundred nine".