3983643 has 12 divisors (see below), whose sum is σ = 5952960. Its totient is φ = 2564016.

The previous prime is 3983641. The next prime is 3983657. The reversal of 3983643 is 3463893.

3983643 is a `hidden beast` number, since 3 + 9 + 8 + 3 + 643 = 666.

It is not a de Polignac number, because 3983643 - 2¹ = 3983641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3983598 and 3983607.

It is not an unprimeable number, because it can be changed into a prime (3983641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7371 + ... + 7892.

It is an arithmetic number, because the mean of its divisors is an integer number (496080).

Almost surely, 2^3983643 is an apocalyptic number.

3983643 is a deficient number, since it is larger than the sum of its proper divisors (1969317).

3983643 is a wasteful number, since it uses less digits than its factorization.

3983643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298 (or 15295 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 3983643 is about 1995.9065609392. The cubic root of 3983643 is about 158.5234335947.

The spelling of 3983643 in words is "three million, nine hundred eighty-three thousand, six hundred forty-three".