6443026 has 4 divisors (see below), whose sum is σ = 9664542. Its totient is φ = 3221512.

The previous prime is 6443011. The next prime is 6443081. The reversal of 6443026 is 6203446.

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

It can be written as a sum of positive squares in only one way, i.e., 6245001 + 198025 = 2499^2 + 445^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610755 + ... + 1610758.

Almost surely, 2^6443026 is an apocalyptic number.

6443026 is a deficient number, since it is larger than the sum of its proper divisors (3221516).

6443026 is a wasteful number, since it uses less digits than its factorization.

6443026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221515.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 6443026 is about 2538.3116435930. The cubic root of 6443026 is about 186.0786848649.

The spelling of 6443026 in words is "six million, four hundred forty-three thousand, twenty-six".