3984982689997 has 2 divisors, whose sum is σ = 3984982689998. Its totient is φ = 3984982689996.

The previous prime is 3984982689983. The next prime is 3984982690009. The reversal of 3984982689997 is 7999862894893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3397216667716 + 587766022281 = 1843154^2 + 766659^2 .

It is an emirp because it is prime and its reverse (7999862894893) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984982689997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3984982689397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992491344998 + 1992491344999.

It is an arithmetic number, because the mean of its divisors is an integer number (1992491344999).

Almost surely, 2^{3984982689997} is an apocalyptic number.

It is an amenable number.

3984982689997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984982689997 is an equidigital number, since it uses as much as digits as its factorization.

3984982689997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30474952704, while the sum is 91.

The spelling of 3984982689997 in words is "three trillion, nine hundred eighty-four billion, nine hundred eighty-two million, six hundred eighty-nine thousand, nine hundred ninety-seven".