3881839 has 8 divisors (see below), whose sum is σ = 4282992. Its totient is φ = 3495360.

The previous prime is 3881837. The next prime is 3881849. The reversal of 3881839 is 9381883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3881839 - 2¹ = 3881837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3109 + ... + 4174.

It is an arithmetic number, because the mean of its divisors is an integer number (535374).

Almost surely, 2^3881839 is an apocalyptic number.

3881839 is a deficient number, since it is larger than the sum of its proper divisors (401153).

3881839 is a wasteful number, since it uses less digits than its factorization.

3881839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337.

The product of its digits is 41472, while the sum is 40.

The square root of 3881839 is about 1970.2383104589. The cubic root of 3881839 is about 157.1613821923.

The spelling of 3881839 in words is "three million, eight hundred eighty-one thousand, eight hundred thirty-nine".