327705631 has 6 divisors (see below), whose sum is σ = 360205496. Its totient is φ = 297914100.

The previous prime is 327705601. The next prime is 327705649. The reversal of 327705631 is 136507723.

It is not a de Polignac number, because 327705631 - 2²³ = 319317023 is a prime.

It is a super-5 number, since 5×327705631⁵ (a number of 44 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327705601) 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 5 ways as a sum of consecutive naturals, for example, 1354035 + ... + 1354276.

Almost surely, 2^327705631 is an apocalyptic number.

327705631 is a deficient number, since it is larger than the sum of its proper divisors (32499865).

327705631 is a wasteful number, since it uses less digits than its factorization.

327705631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708333 (or 2708322 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 327705631 is about 18102.6415475753. The cubic root of 327705631 is about 689.4370757047.

The spelling of 327705631 in words is "three hundred twenty-seven million, seven hundred five thousand, six hundred thirty-one".