3967141 has 2 divisors, whose sum is σ = 3967142. Its totient is φ = 3967140.

The previous prime is 3967133. The next prime is 3967147. The reversal of 3967141 is 1417693.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2873025 + 1094116 = 1695^2 + 1046^2 .

It is an emirp because it is prime and its reverse (1417693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3967141 - 2³ = 3967133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3967147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983570 + 1983571.

It is an arithmetic number, because the mean of its divisors is an integer number (1983571).

Almost surely, 2^3967141 is an apocalyptic number.

It is an amenable number.

3967141 is a deficient number, since it is larger than the sum of its proper divisors (1).

3967141 is an equidigital number, since it uses as much as digits as its factorization.

3967141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 3967141 is about 1991.7683098192. The cubic root of 3967141 is about 158.3042394065.

The spelling of 3967141 in words is "three million, nine hundred sixty-seven thousand, one hundred forty-one".