3881837 has 2 divisors, whose sum is σ = 3881838. Its totient is φ = 3881836.

The previous prime is 3881807. The next prime is 3881849. The reversal of 3881837 is 7381883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3632836 + 249001 = 1906^2 + 499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3881837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3881837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3881807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1940918 + 1940919.

It is an arithmetic number, because the mean of its divisors is an integer number (1940919).

Almost surely, 2^3881837 is an apocalyptic number.

It is an amenable number.

3881837 is a deficient number, since it is larger than the sum of its proper divisors (1).

3881837 is an equidigital number, since it uses as much as digits as its factorization.

3881837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 3881837 is about 1970.2378029060. The cubic root of 3881837 is about 157.1613552014.

The spelling of 3881837 in words is "three million, eight hundred eighty-one thousand, eight hundred thirty-seven".