8972543 has 4 divisors (see below), whose sum is σ = 9124680. Its totient is φ = 8820408.

The previous prime is 8972501. The next prime is 8972567. The reversal of 8972543 is 3452798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8972543 - 2⁸ = 8972287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8972497 and 8972506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8372543) 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, 75980 + ... + 76097.

It is an arithmetic number, because the mean of its divisors is an integer number (2281170).

Almost surely, 2^8972543 is an apocalyptic number.

8972543 is a deficient number, since it is larger than the sum of its proper divisors (152137).

8972543 is a wasteful number, since it uses less digits than its factorization.

8972543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152136.

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

The square root of 8972543 is about 2995.4203377823. The cubic root of 8972543 is about 207.7966377136.

The spelling of 8972543 in words is "eight million, nine hundred seventy-two thousand, five hundred forty-three".