3984941 has 2 divisors, whose sum is σ = 3984942. Its totient is φ = 3984940.

The previous prime is 3984917. The next prime is 3984943. The reversal of 3984941 is 1494893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3786916 + 198025 = 1946^2 + 445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984941 is a prime.

Together with 3984943, 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 = 3984895 and 3984904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3984943) 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 as a sum of consecutive naturals, namely, 1992470 + 1992471.

It is an arithmetic number, because the mean of its divisors is an integer number (1992471).

Almost surely, 2^3984941 is an apocalyptic number.

It is an amenable number.

3984941 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984941 is an equidigital number, since it uses as much as digits as its factorization.

3984941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 3984941 is about 1996.2316999787. The cubic root of 3984941 is about 158.5406490825.

The spelling of 3984941 in words is "three million, nine hundred eighty-four thousand, nine hundred forty-one".