6444111 has 8 divisors (see below), whose sum is σ = 8754480. Its totient is φ = 4214912.

The previous prime is 6444083. The next prime is 6444121. The reversal of 6444111 is 1114446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6444111 - 2⁵ = 6444079 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20106 + ... + 20423.

It is an arithmetic number, because the mean of its divisors is an integer number (1094310).

Almost surely, 2^6444111 is an apocalyptic number.

6444111 is a deficient number, since it is larger than the sum of its proper divisors (2310369).

6444111 is a wasteful number, since it uses less digits than its factorization.

6444111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40585.

The product of its digits is 384, while the sum is 21.

The square root of 6444111 is about 2538.5253593376. The cubic root of 6444111 is about 186.0891294418.

Adding to 6444111 its reverse (1114446), we get a palindrome (7558557).

It can be divided in two parts, 6444 and 111, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 6444111 in words is "six million, four hundred forty-four thousand, one hundred eleven".