3821668 has 24 divisors (see below), whose sum is σ = 7251552. Its totient is φ = 1755264.

The previous prime is 3821647. The next prime is 3821669. The reversal of 3821668 is 8661283.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (3821669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2271 + ... + 3577.

It is an arithmetic number, because the mean of its divisors is an integer number (302148).

Almost surely, 2^3821668 is an apocalyptic number.

It is an amenable number.

3821668 is a deficient number, since it is larger than the sum of its proper divisors (3429884).

3821668 is a wasteful number, since it uses less digits than its factorization.

3821668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371 (or 1369 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 3821668 is about 1954.9086935200. The cubic root of 3821668 is about 156.3451158473.

It can be divided in two parts, 3821 and 668, that added together give a square (4489 = 67²).

The spelling of 3821668 in words is "three million, eight hundred twenty-one thousand, six hundred sixty-eight".