3871331 has 2 divisors, whose sum is σ = 3871332. Its totient is φ = 3871330.

The previous prime is 3871321. The next prime is 3871339. The reversal of 3871331 is 1331783.

3871331 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 (1331783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3871331 - 2¹⁴ = 3854947 is a prime.

It is a super-2 number, since 2×3871331² = 29974407423122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3871331.

It is not a weakly prime, because it can be changed into another prime (3871339) 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, 1935665 + 1935666.

It is an arithmetic number, because the mean of its divisors is an integer number (1935666).

Almost surely, 2^3871331 is an apocalyptic number.

3871331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3871331 is an equidigital number, since it uses as much as digits as its factorization.

3871331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 3871331 is about 1967.5698208704. The cubic root of 3871331 is about 157.0194439521.

The spelling of 3871331 in words is "three million, eight hundred seventy-one thousand, three hundred thirty-one".