6443006 has 4 divisors (see below), whose sum is σ = 9664512. Its totient is φ = 3221502.

The previous prime is 6442999. The next prime is 6443011. The reversal of 6443006 is 6003446.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610750 + ... + 1610753.

It is an arithmetic number, because the mean of its divisors is an integer number (2416128).

Almost surely, 2^6443006 is an apocalyptic number.

6443006 is a deficient number, since it is larger than the sum of its proper divisors (3221506).

6443006 is a wasteful number, since it uses less digits than its factorization.

6443006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221505.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 6443006 is about 2538.3077039634. The cubic root of 6443006 is about 186.0784923272.

The spelling of 6443006 in words is "six million, four hundred forty-three thousand, six".