43628686 has 4 divisors (see below), whose sum is σ = 65443032. Its totient is φ = 21814342.

The previous prime is 43628659. The next prime is 43628707. The reversal of 43628686 is 68682634.

43628686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 10907170 + ... + 10907173.

It is an arithmetic number, because the mean of its divisors is an integer number (16360758).

Almost surely, 2^43628686 is an apocalyptic number.

43628686 is a deficient number, since it is larger than the sum of its proper divisors (21814346).

43628686 is a wasteful number, since it uses less digits than its factorization.

43628686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21814345.

The product of its digits is 331776, while the sum is 43.

The square root of 43628686 is about 6605.2014352327. The cubic root of 43628686 is about 352.0389452003.

The spelling of 43628686 in words is "forty-three million, six hundred twenty-eight thousand, six hundred eighty-six".