3964443 has 24 divisors (see below), whose sum is σ = 6224400. Its totient is φ = 2237760.

The previous prime is 3964423. The next prime is 3964463. The reversal of 3964443 is 3444693.

It is an interprime number because it is at equal distance from previous prime (3964423) and next prime (3964463).

It is not a de Polignac number, because 3964443 - 2⁹ = 3963931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3964423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21813 + ... + 21993.

It is an arithmetic number, because the mean of its divisors is an integer number (259350).

Almost surely, 2^3964443 is an apocalyptic number.

3964443 is a deficient number, since it is larger than the sum of its proper divisors (2259957).

3964443 is a wasteful number, since it uses less digits than its factorization.

3964443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 340 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 3964443 is about 1991.0909070155. The cubic root of 3964443 is about 158.2683443965.

The spelling of 3964443 in words is "three million, nine hundred sixty-four thousand, four hundred forty-three".