8443426 has 4 divisors (see below), whose sum is σ = 12665142. Its totient is φ = 4221712.

The previous prime is 8443397. The next prime is 8443433. The reversal of 8443426 is 6243448.

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., 6497401 + 1946025 = 2549^2 + 1395^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110855 + ... + 2110858.

Almost surely, 2^8443426 is an apocalyptic number.

8443426 is a deficient number, since it is larger than the sum of its proper divisors (4221716).

8443426 is a wasteful number, since it uses less digits than its factorization.

8443426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221715.

The product of its digits is 18432, while the sum is 31.

The square root of 8443426 is about 2905.7573883585. The cubic root of 8443426 is about 203.6289712428.

The spelling of 8443426 in words is "eight million, four hundred forty-three thousand, four hundred twenty-six".