43216984 has 8 divisors (see below), whose sum is σ = 81031860. Its totient is φ = 21608488.

The previous prime is 43216981. The next prime is 43217011. The reversal of 43216984 is 48961234.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43216981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701054 + ... + 2701069.

Almost surely, 2^43216984 is an apocalyptic number.

It is an amenable number.

43216984 is a deficient number, since it is larger than the sum of its proper divisors (37814876).

43216984 is a wasteful number, since it uses less digits than its factorization.

43216984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5402129 (or 5402125 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 43216984 is about 6573.9625797536. The cubic root of 43216984 is about 350.9281054472.

The spelling of 43216984 in words is "forty-three million, two hundred sixteen thousand, nine hundred eighty-four".