6443941 has 8 divisors (see below), whose sum is σ = 7515200. Its totient is φ = 5523084.

The previous prime is 6443917. The next prime is 6443947. The reversal of 6443941 is 1493446.

It is not a de Polignac number, because 6443941 - 2⁵ = 6443909 is a prime.

It is a super-5 number, since 5×6443941⁵ (a number of 35 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443947) 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, 9051 + ... + 9736.

It is an arithmetic number, because the mean of its divisors is an integer number (939400).

Almost surely, 2^6443941 is an apocalyptic number.

It is an amenable number.

6443941 is a deficient number, since it is larger than the sum of its proper divisors (1071259).

6443941 is an equidigital number, since it uses as much as digits as its factorization.

6443941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18808 (or 18794 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 6443941 is about 2538.4918751101. The cubic root of 6443941 is about 186.0874930418.

The spelling of 6443941 in words is "six million, four hundred forty-three thousand, nine hundred forty-one".