3963849 has 4 divisors (see below), whose sum is σ = 5285136. Its totient is φ = 2642564.

The previous prime is 3963833. The next prime is 3963853. The reversal of 3963849 is 9483693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3963849 - 2⁴ = 3963833 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3963849.

It is not an unprimeable number, because it can be changed into a prime (3963809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660639 + ... + 660644.

It is an arithmetic number, because the mean of its divisors is an integer number (1321284).

Almost surely, 2^3963849 is an apocalyptic number.

It is an amenable number.

3963849 is a deficient number, since it is larger than the sum of its proper divisors (1321287).

3963849 is a wasteful number, since it uses less digits than its factorization.

3963849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321286.

The product of its digits is 139968, while the sum is 42.

The square root of 3963849 is about 1990.9417369677. The cubic root of 3963849 is about 158.2604394532.

The spelling of 3963849 in words is "three million, nine hundred sixty-three thousand, eight hundred forty-nine".