8443786282 has 4 divisors (see below), whose sum is σ = 12665679426. Its totient is φ = 4221893140.

The previous prime is 8443786237. The next prime is 8443786283. The reversal of 8443786282 is 2826873448.

It is a happy number.

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., 8368773361 + 75012921 = 91481^2 + 8661^2 .

It is not an unprimeable number, because it can be changed into a prime (8443786283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110946569 + ... + 2110946572.

Almost surely, 2^8443786282 is an apocalyptic number.

8443786282 is a deficient number, since it is larger than the sum of its proper divisors (4221893144).

8443786282 is a wasteful number, since it uses less digits than its factorization.

8443786282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221893143.

The product of its digits is 4128768, while the sum is 52.

The square root of 8443786282 is about 91890.0771683211. The cubic root of 8443786282 is about 2036.3186749252.

The spelling of 8443786282 in words is "eight billion, four hundred forty-three million, seven hundred eighty-six thousand, two hundred eighty-two".