3881859 has 8 divisors (see below), whose sum is σ = 5186832. Its totient is φ = 2582400.

The previous prime is 3881849. The next prime is 3881863. The reversal of 3881859 is 9581883.

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

It is not a de Polignac number, because 3881859 - 2¹² = 3877763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3881859.

It is not an unprimeable number, because it can be changed into a prime (3881849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727 + ... + 2879.

It is an arithmetic number, because the mean of its divisors is an integer number (648354).

Almost surely, 2^3881859 is an apocalyptic number.

3881859 is a deficient number, since it is larger than the sum of its proper divisors (1304973).

3881859 is a wasteful number, since it uses less digits than its factorization.

3881859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757.

The product of its digits is 69120, while the sum is 42.

The square root of 3881859 is about 1970.2433859805. The cubic root of 3881859 is about 157.1616521006.

The spelling of 3881859 in words is "three million, eight hundred eighty-one thousand, eight hundred fifty-nine".