327640 has 16 divisors (see below), whose sum is σ = 737280. Its totient is φ = 131040.

The previous prime is 327629. The next prime is 327647. The reversal of 327640 is 46723.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327647) 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 3 ways as a sum of consecutive naturals, for example, 4056 + ... + 4135.

It is an arithmetic number, because the mean of its divisors is an integer number (46080).

327640 is a Friedman number, since it can be written as 20*(4^7-6/3), using all its digits and the basic arithmetic operations.

2³²⁷⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

327640 is an abundant number, since it is smaller than the sum of its proper divisors (409640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

327640 is a wasteful number, since it uses less digits than its factorization.

327640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8202 (or 8198 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 327640 is about 572.3984626115. The cubic root of 327640 is about 68.9391047134.

The spelling of 327640 in words is "three hundred twenty-seven thousand, six hundred forty".