43989673 has 16 divisors (see below), whose sum is σ = 54503680. Its totient is φ = 34572096.

The previous prime is 43989667. The next prime is 43989689. The reversal of 43989673 is 37698934.

It is not a de Polignac number, because 43989673 - 2¹³ = 43981481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43989613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12748 + ... + 15826.

It is an arithmetic number, because the mean of its divisors is an integer number (3406480).

Almost surely, 2^43989673 is an apocalyptic number.

It is an amenable number.

43989673 is a deficient number, since it is larger than the sum of its proper divisors (10514007).

43989673 is a wasteful number, since it uses less digits than its factorization.

43989673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256.

The product of its digits is 979776, while the sum is 49.

The square root of 43989673 is about 6632.4711081165. The cubic root of 43989673 is about 353.0072117448.

The spelling of 43989673 in words is "forty-three million, nine hundred eighty-nine thousand, six hundred seventy-three".