3837881 has 4 divisors (see below), whose sum is σ = 3842292. Its totient is φ = 3833472.

The previous prime is 3837877. The next prime is 3837901. The reversal of 3837881 is 1887383.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2805625 + 1032256 = 1675^2 + 1016^2 .

It is a cyclic number.

It is not a de Polignac number, because 3837881 - 2² = 3837877 is a prime.

It is a super-2 number, since 2×3837881² = 29458661140322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3837851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (960573).

Almost surely, 2^3837881 is an apocalyptic number.

It is an amenable number.

3837881 is a deficient number, since it is larger than the sum of its proper divisors (4411).

3837881 is a wasteful number, since it uses less digits than its factorization.

3837881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410.

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

The square root of 3837881 is about 1959.0510457872. The cubic root of 3837881 is about 156.5658961645.

The spelling of 3837881 in words is "three million, eight hundred thirty-seven thousand, eight hundred eighty-one".