4443947 has 4 divisors (see below), whose sum is σ = 4449096. Its totient is φ = 4438800.

The previous prime is 4443941. The next prime is 4443973. The reversal of 4443947 is 7493444.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4443947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4443941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929 + ... + 3122.

It is an arithmetic number, because the mean of its divisors is an integer number (1112274).

Almost surely, 2^4443947 is an apocalyptic number.

4443947 is a deficient number, since it is larger than the sum of its proper divisors (5149).

4443947 is a wasteful number, since it uses less digits than its factorization.

4443947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148.

The product of its digits is 48384, while the sum is 35.

The square root of 4443947 is about 2108.0671241685. The cubic root of 4443947 is about 164.4080040424.

The spelling of 4443947 in words is "four million, four hundred forty-three thousand, nine hundred forty-seven".