43217612 has 6 divisors (see below), whose sum is σ = 75630828. Its totient is φ = 21608804.

The previous prime is 43217611. The next prime is 43217617. The reversal of 43217612 is 21671234.

43217612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (43217611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5402198 + ... + 5402205.

It is an arithmetic number, because the mean of its divisors is an integer number (12605138).

Almost surely, 2^43217612 is an apocalyptic number.

It is an amenable number.

43217612 is a deficient number, since it is larger than the sum of its proper divisors (32413216).

43217612 is a wasteful number, since it uses less digits than its factorization.

43217612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10804407 (or 10804405 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 43217612 is about 6574.0103437704. The cubic root of 43217612 is about 350.9298052556.

Adding to 43217612 its reverse (21671234), we get a palindrome (64888846).

The spelling of 43217612 in words is "forty-three million, two hundred seventeen thousand, six hundred twelve".