8543856922 has 4 divisors (see below), whose sum is σ = 12815785386. Its totient is φ = 4271928460.

The previous prime is 8543856917. The next prime is 8543856929. The reversal of 8543856922 is 2296583458.

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., 8283002121 + 260854801 = 91011^2 + 16151^2 .

It is a super-2 number, since 2×8543856922² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8543856922.

It is not an unprimeable number, because it can be changed into a prime (8543856929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135964229 + ... + 2135964232.

Almost surely, 2^8543856922 is an apocalyptic number.

8543856922 is a deficient number, since it is larger than the sum of its proper divisors (4271928464).

8543856922 is a wasteful number, since it uses less digits than its factorization.

8543856922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271928463.

The product of its digits is 4147200, while the sum is 52.

The square root of 8543856922 is about 92432.9861142655. The cubic root of 8543856922 is about 2044.3315085144.

The spelling of 8543856922 in words is "eight billion, five hundred forty-three million, eight hundred fifty-six thousand, nine hundred twenty-two".