43427643 has 16 divisors (see below), whose sum is σ = 67015680. Its totient is φ = 24500736.

The previous prime is 43427641. The next prime is 43427663. The reversal of 43427643 is 34672434.

It is not a de Polignac number, because 43427643 - 2¹ = 43427641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43427641) 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, 11430 + ... + 14747.

It is an arithmetic number, because the mean of its divisors is an integer number (4188480).

Almost surely, 2^43427643 is an apocalyptic number.

43427643 is a deficient number, since it is larger than the sum of its proper divisors (23588037).

43427643 is a wasteful number, since it uses less digits than its factorization.

43427643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26266.

The product of its digits is 48384, while the sum is 33.

The square root of 43427643 is about 6589.9653261607. The cubic root of 43427643 is about 351.4973752474.

The spelling of 43427643 in words is "forty-three million, four hundred twenty-seven thousand, six hundred forty-three".