327988688 has 20 divisors (see below), whose sum is σ = 635794500. Its totient is φ = 163912704.

The previous prime is 327988673. The next prime is 327988747. The reversal of 327988688 is 886889723.

It can be written as a sum of positive squares in 2 ways, for example, as 66455104 + 261533584 = 8152^2 + 16172^2 .

It is a super-2 number, since 2×327988688² = 215153158911922688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40256 + ... + 47712.

It is an arithmetic number, because the mean of its divisors is an integer number (31789725).

Almost surely, 2^327988688 is an apocalyptic number.

It is an amenable number.

327988688 is a deficient number, since it is larger than the sum of its proper divisors (307805812).

327988688 is a wasteful number, since it uses less digits than its factorization.

327988688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10214 (or 10208 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 59.

The square root of 327988688 is about 18110.4579732264. The cubic root of 327988688 is about 689.6355198892.

The spelling of 327988688 in words is "three hundred twenty-seven million, nine hundred eighty-eight thousand, six hundred eighty-eight".