327686634 has 120 divisors (see below), whose sum is σ = 821708580. Its totient is φ = 97511040.

The previous prime is 327686633. The next prime is 327686659. The reversal of 327686634 is 436686723.

327686634 is a `hidden beast` number, since 3 + 2 + 7 + 6 + 8 + 6 + 634 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 300155625 + 27531009 = 17325^2 + 5247^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 327686634.

It is not an unprimeable number, because it can be changed into a prime (327686633) 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 59 ways as a sum of consecutive naturals, for example, 1430832 + ... + 1431060.

Almost surely, 2^327686634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 327686634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410854290).

327686634 is an abundant number, since it is smaller than the sum of its proper divisors (494021946).

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

327686634 is a wasteful number, since it uses less digits than its factorization.

327686634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 318 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 327686634 is about 18102.1168375414. The cubic root of 327686634 is about 689.4237532917.

The spelling of 327686634 in words is "three hundred twenty-seven million, six hundred eighty-six thousand, six hundred thirty-four".