3881828 has 6 divisors (see below), whose sum is σ = 6793206. Its totient is φ = 1940912.

The previous prime is 3881807. The next prime is 3881837. The reversal of 3881828 is 8281883.

It can be written as a sum of positive squares in only one way, i.e., 3020644 + 861184 = 1738^2 + 928^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3881791 and 3881800.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 485225 + ... + 485232.

It is an arithmetic number, because the mean of its divisors is an integer number (1132201).

Almost surely, 2^3881828 is an apocalyptic number.

It is an amenable number.

3881828 is a deficient number, since it is larger than the sum of its proper divisors (2911378).

3881828 is a wasteful number, since it uses less digits than its factorization.

3881828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970461 (or 970459 counting only the distinct ones).

The product of its digits is 24576, while the sum is 38.

The square root of 3881828 is about 1970.2355189165. The cubic root of 3881828 is about 157.1612337423.

The spelling of 3881828 in words is "three million, eight hundred eighty-one thousand, eight hundred twenty-eight".