8543973 has 4 divisors (see below), whose sum is σ = 11391968. Its totient is φ = 5695980.

The previous prime is 8543963. The next prime is 8543987. The reversal of 8543973 is 3793458.

8543973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8543973 - 2⁴ = 8543957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8543903) 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, 1423993 + ... + 1423998.

It is an arithmetic number, because the mean of its divisors is an integer number (2847992).

Almost surely, 2^8543973 is an apocalyptic number.

It is an amenable number.

8543973 is a deficient number, since it is larger than the sum of its proper divisors (2847995).

8543973 is a wasteful number, since it uses less digits than its factorization.

8543973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847994.

The product of its digits is 90720, while the sum is 39.

The square root of 8543973 is about 2923.0075265042. The cubic root of 8543973 is about 204.4340766661.

The spelling of 8543973 in words is "eight million, five hundred forty-three thousand, nine hundred seventy-three".