6444103 has 4 divisors (see below), whose sum is σ = 6508008. Its totient is φ = 6380200.

The previous prime is 6444083. The next prime is 6444121. The reversal of 6444103 is 3014446.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6444103 - 2¹⁷ = 6313031 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

6444103 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444703) 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, 31801 + ... + 32002.

It is an arithmetic number, because the mean of its divisors is an integer number (1627002).

Almost surely, 2^6444103 is an apocalyptic number.

6444103 is a deficient number, since it is larger than the sum of its proper divisors (63905).

6444103 is a wasteful number, since it uses less digits than its factorization.

6444103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63904.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 6444103 is about 2538.5237836191. The cubic root of 6444103 is about 186.0890524354.

Adding to 6444103 its reverse (3014446), we get a palindrome (9458549).

The spelling of 6444103 in words is "six million, four hundred forty-four thousand, one hundred three".