3943964 has 6 divisors (see below), whose sum is σ = 6901944. Its totient is φ = 1971980.

The previous prime is 3943957. The next prime is 3943967. The reversal of 3943964 is 4693493.

3943964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×3943964³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492992 + ... + 492999.

It is an arithmetic number, because the mean of its divisors is an integer number (1150324).

Almost surely, 2^3943964 is an apocalyptic number.

It is an amenable number.

3943964 is a deficient number, since it is larger than the sum of its proper divisors (2957980).

3943964 is a wasteful number, since it uses less digits than its factorization.

3943964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985995 (or 985993 counting only the distinct ones).

The product of its digits is 69984, while the sum is 38.

The square root of 3943964 is about 1985.9415902790. The cubic root of 3943964 is about 157.9953531721.

The spelling of 3943964 in words is "three million, nine hundred forty-three thousand, nine hundred sixty-four".