3984566327197 has 8 divisors (see below), whose sum is σ = 4223875529016. Its totient is φ = 3745804119552.

The previous prime is 3984566327191. The next prime is 3984566327227. The reversal of 3984566327197 is 7917236654893.

It can be written as a sum of positive squares in 4 ways, for example, as 2735762312196 + 1248804015001 = 1654014^2 + 1117499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3984566327197 - 2⁷ = 3984566327069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984566327191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136733538 + ... + 136762675.

It is an arithmetic number, because the mean of its divisors is an integer number (527984441127).

Almost surely, 2^{3984566327197} is an apocalyptic number.

It is an amenable number.

3984566327197 is a deficient number, since it is larger than the sum of its proper divisors (239309201819).

3984566327197 is a wasteful number, since it uses less digits than its factorization.

3984566327197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273497087.

The product of its digits is 411505920, while the sum is 70.

The spelling of 3984566327197 in words is "three trillion, nine hundred eighty-four billion, five hundred sixty-six million, three hundred twenty-seven thousand, one hundred ninety-seven".