6443396 has 24 divisors (see below), whose sum is σ = 11695320. Its totient is φ = 3104000.

The previous prime is 6443389. The next prime is 6443399. The reversal of 6443396 is 6933446.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 440896 + 6002500 = 664^2 + 2450^2 .

It is not an unprimeable number, because it can be changed into a prime (6443399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16370 + ... + 16758.

It is an arithmetic number, because the mean of its divisors is an integer number (487305).

Almost surely, 2^6443396 is an apocalyptic number.

It is an amenable number.

6443396 is a deficient number, since it is larger than the sum of its proper divisors (5251924).

6443396 is a wasteful number, since it uses less digits than its factorization.

6443396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 533 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 6443396 is about 2538.3845256383. The cubic root of 6443396 is about 186.0822467418.

The spelling of 6443396 in words is "six million, four hundred forty-three thousand, three hundred ninety-six".