8729543 has 2 divisors, whose sum is σ = 8729544. Its totient is φ = 8729542.

The previous prime is 8729491. The next prime is 8729557. The reversal of 8729543 is 3459278.

8729543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8729543 - 2¹⁸ = 8467399 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 8729497 and 8729506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8729563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4364771 + 4364772.

It is an arithmetic number, because the mean of its divisors is an integer number (4364772).

Almost surely, 2^8729543 is an apocalyptic number.

8729543 is a deficient number, since it is larger than the sum of its proper divisors (1).

8729543 is an equidigital number, since it uses as much as digits as its factorization.

8729543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 8729543 is about 2954.5800039938. The cubic root of 8729543 is about 205.9035508530.

The spelling of 8729543 in words is "eight million, seven hundred twenty-nine thousand, five hundred forty-three".