8909543 has 4 divisors (see below), whose sum is σ = 8916000. Its totient is φ = 8903088.

The previous prime is 8909539. The next prime is 8909567. The reversal of 8909543 is 3459098.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8909543 - 2² = 8909539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8909497 and 8909506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8909503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230 + ... + 4227.

It is an arithmetic number, because the mean of its divisors is an integer number (2229000).

Almost surely, 2^8909543 is an apocalyptic number.

8909543 is a deficient number, since it is larger than the sum of its proper divisors (6457).

8909543 is a wasteful number, since it uses less digits than its factorization.

8909543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6456.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 8909543 is about 2984.8857599580. The cubic root of 8909543 is about 207.3091524364.

The spelling of 8909543 in words is "eight million, nine hundred nine thousand, five hundred forty-three".