327689985 has 16 divisors (see below), whose sum is σ = 599204736. Its totient is φ = 149801088.

The previous prime is 327689983. The next prime is 327690001. The reversal of 327689985 is 589986723.

It is not a de Polignac number, because 327689985 - 2¹ = 327689983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (327689983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1560324 + ... + 1560533.

It is an arithmetic number, because the mean of its divisors is an integer number (37450296).

Almost surely, 2^327689985 is an apocalyptic number.

327689985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

327689985 is a deficient number, since it is larger than the sum of its proper divisors (271514751).

327689985 is a wasteful number, since it uses less digits than its factorization.

327689985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120872.

The product of its digits is 6531840, while the sum is 57.

The square root of 327689985 is about 18102.2093955406. The cubic root of 327689985 is about 689.4261033531.

The spelling of 327689985 in words is "three hundred twenty-seven million, six hundred eighty-nine thousand, nine hundred eighty-five".