8557443 has 12 divisors (see below), whose sum is σ = 13088088. Its totient is φ = 5369280.

The previous prime is 8557421. The next prime is 8557447. The reversal of 8557443 is 3447558.

8557443 is a `hidden beast` number, since 85 + 574 + 4 + 3 = 666.

8557443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8557443 - 2⁵ = 8557411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8557398 and 8557407.

It is not an unprimeable number, because it can be changed into a prime (8557447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27813 + ... + 28118.

It is an arithmetic number, because the mean of its divisors is an integer number (1090674).

Almost surely, 2^8557443 is an apocalyptic number.

8557443 is a deficient number, since it is larger than the sum of its proper divisors (4530645).

8557443 is a wasteful number, since it uses less digits than its factorization.

8557443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55954 (or 55951 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 8557443 is about 2925.3107527235. The cubic root of 8557443 is about 204.5414537669.

It can be divided in two parts, 8 and 557443, that multiplied together give a palindrome (4459544).

The spelling of 8557443 in words is "eight million, five hundred fifty-seven thousand, four hundred forty-three".