3867844 has 6 divisors (see below), whose sum is σ = 6768734. Its totient is φ = 1933920.

The previous prime is 3867803. The next prime is 3867847. The reversal of 3867844 is 4487683.

It can be written as a sum of positive squares in only one way, i.e., 3841600 + 26244 = 1960^2 + 162^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3867797 and 3867806.

It is not an unprimeable number, because it can be changed into a prime (3867847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483477 + ... + 483484.

Almost surely, 2^3867844 is an apocalyptic number.

It is an amenable number.

3867844 is a deficient number, since it is larger than the sum of its proper divisors (2900890).

3867844 is a wasteful number, since it uses less digits than its factorization.

3867844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966965 (or 966963 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 3867844 is about 1966.6835027528. The cubic root of 3867844 is about 156.9722860733.

The spelling of 3867844 in words is "three million, eight hundred sixty-seven thousand, eight hundred forty-four".