8443973 has 4 divisors (see below), whose sum is σ = 8623680. Its totient is φ = 8264268.

The previous prime is 8443969. The next prime is 8443993. The reversal of 8443973 is 3793448.

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 a cyclic number.

It is not a de Polignac number, because 8443973 - 2² = 8443969 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8443913) 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, 89783 + ... + 89876.

It is an arithmetic number, because the mean of its divisors is an integer number (2155920).

Almost surely, 2^8443973 is an apocalyptic number.

It is an amenable number.

8443973 is a deficient number, since it is larger than the sum of its proper divisors (179707).

8443973 is a wasteful number, since it uses less digits than its factorization.

8443973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179706.

The product of its digits is 72576, while the sum is 38.

The square root of 8443973 is about 2905.8515103150. The cubic root of 8443973 is about 203.6333684564.

The spelling of 8443973 in words is "eight million, four hundred forty-three thousand, nine hundred seventy-three".