3857944 has 8 divisors (see below), whose sum is σ = 7233660. Its totient is φ = 1928968.

The previous prime is 3857941. The next prime is 3857983. The reversal of 3857944 is 4497583.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 3 + 8⁷ + 5⁷ + 7⁷ + 9⁶ + 4⁸ + 4⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 3857897 and 3857906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241114 + ... + 241129.

Almost surely, 2^3857944 is an apocalyptic number.

It is an amenable number.

3857944 is a deficient number, since it is larger than the sum of its proper divisors (3375716).

3857944 is a wasteful number, since it uses less digits than its factorization.

3857944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482249 (or 482245 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 3857944 is about 1964.1649625222. The cubic root of 3857944 is about 156.8382446972.

The spelling of 3857944 in words is "three million, eight hundred fifty-seven thousand, nine hundred forty-four".