6444475 has 12 divisors (see below), whose sum is σ = 8208304. Its totient is φ = 5015520.

The previous prime is 6444443. The next prime is 6444481. The reversal of 6444475 is 5744446.

It is not a de Polignac number, because 6444475 - 2⁵ = 6444443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6444475.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2559 + ... + 4408.

Almost surely, 2^6444475 is an apocalyptic number.

6444475 is a deficient number, since it is larger than the sum of its proper divisors (1763829).

6444475 is a wasteful number, since it uses less digits than its factorization.

6444475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014 (or 7009 counting only the distinct ones).

The product of its digits is 53760, while the sum is 34.

The square root of 6444475 is about 2538.5970534923. The cubic root of 6444475 is about 186.0926331663.

The spelling of 6444475 in words is "six million, four hundred forty-four thousand, four hundred seventy-five".