3984161 has 2 divisors, whose sum is σ = 3984162. Its totient is φ = 3984160.

The previous prime is 3984139. The next prime is 3984173. The reversal of 3984161 is 1614893.

It is a happy number.

3984161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2383936 + 1600225 = 1544^2 + 1265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3984131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992080 + 1992081.

It is an arithmetic number, because the mean of its divisors is an integer number (1992081).

Almost surely, 2^3984161 is an apocalyptic number.

It is an amenable number.

3984161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984161 is an equidigital number, since it uses as much as digits as its factorization.

3984161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 3984161 is about 1996.0363223148. The cubic root of 3984161 is about 158.5303043225.

The spelling of 3984161 in words is "three million, nine hundred eighty-four thousand, one hundred sixty-one".