43673973 has 8 divisors (see below), whose sum is σ = 66550848. Its totient is φ = 24956544.

The previous prime is 43673963. The next prime is 43673999. The reversal of 43673973 is 37937634.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43673973 - 2⁶ = 43673909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43673923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039836 + ... + 1039877.

It is an arithmetic number, because the mean of its divisors is an integer number (8318856).

Almost surely, 2^43673973 is an apocalyptic number.

It is an amenable number.

43673973 is a deficient number, since it is larger than the sum of its proper divisors (22876875).

43673973 is a wasteful number, since it uses less digits than its factorization.

43673973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079723.

The product of its digits is 285768, while the sum is 42.

The square root of 43673973 is about 6608.6286777213. The cubic root of 43673973 is about 352.1607096943.

The spelling of 43673973 in words is "forty-three million, six hundred seventy-three thousand, nine hundred seventy-three".