6444047 has 4 divisors (see below), whose sum is σ = 6449136. Its totient is φ = 6438960.

The previous prime is 6444043. The next prime is 6444049. The reversal of 6444047 is 7404446.

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 not a de Polignac number, because 6444047 - 2² = 6444043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022 + ... + 3732.

It is an arithmetic number, because the mean of its divisors is an integer number (1612284).

Almost surely, 2^6444047 is an apocalyptic number.

6444047 is a deficient number, since it is larger than the sum of its proper divisors (5089).

6444047 is a wasteful number, since it uses less digits than its factorization.

6444047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 6444047 is about 2538.5127535626. The cubic root of 6444047 is about 186.0885133887.

The spelling of 6444047 in words is "six million, four hundred forty-four thousand, forty-seven".