3285881 has 4 divisors (see below), whose sum is σ = 3334992. Its totient is φ = 3236772.

The previous prime is 3285857. The next prime is 3285889. The reversal of 3285881 is 1885823.

3285881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3285881 - 2¹⁰ = 3284857 is a prime.

It is a super-2 number, since 2×3285881² = 21594027892322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3285889) 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 in 3 ways as a sum of consecutive naturals, for example, 24455 + ... + 24588.

It is an arithmetic number, because the mean of its divisors is an integer number (833748).

Almost surely, 2^3285881 is an apocalyptic number.

It is an amenable number.

3285881 is a deficient number, since it is larger than the sum of its proper divisors (49111).

3285881 is an equidigital number, since it uses as much as digits as its factorization.

3285881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49110.

The product of its digits is 15360, while the sum is 35.

The square root of 3285881 is about 1812.6999200088. The cubic root of 3285881 is about 148.6679240265.

The spelling of 3285881 in words is "three million, two hundred eighty-five thousand, eight hundred eighty-one".