3881671 has 2 divisors, whose sum is σ = 3881672. Its totient is φ = 3881670.

The previous prime is 3881659. The next prime is 3881699. The reversal of 3881671 is 1761883.

It is a weak prime.

It is an emirp because it is prime and its reverse (1761883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3881671 - 2⁷ = 3881543 is a prime.

3881671 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3881611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1940835 + 1940836.

It is an arithmetic number, because the mean of its divisors is an integer number (1940836).

Almost surely, 2^3881671 is an apocalyptic number.

3881671 is a deficient number, since it is larger than the sum of its proper divisors (1).

3881671 is an equidigital number, since it uses as much as digits as its factorization.

3881671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 34.

The square root of 3881671 is about 1970.1956755612. The cubic root of 3881671 is about 157.1591149256.

The spelling of 3881671 in words is "three million, eight hundred eighty-one thousand, six hundred seventy-one".