3984131 has 2 divisors, whose sum is σ = 3984132. Its totient is φ = 3984130.

The previous prime is 3984109. The next prime is 3984133. The reversal of 3984131 is 1314893.

3984131 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 is an emirp because it is prime and its reverse (1314893) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984131 is a prime.

It is a super-2 number, since 2×3984131² = 31746599650322, which contains 22 as substring.

Together with 3984133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3984094 and 3984103.

It is not a weakly prime, because it can be changed into another prime (3984133) 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, 1992065 + 1992066.

It is an arithmetic number, because the mean of its divisors is an integer number (1992066).

Almost surely, 2^3984131 is an apocalyptic number.

3984131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984131 is an equidigital number, since it uses as much as digits as its factorization.

3984131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 3984131 is about 1996.0288074073. The cubic root of 3984131 is about 158.5299064201.

The spelling of 3984131 in words is "three million, nine hundred eighty-four thousand, one hundred thirty-one".