43427361 has 4 divisors (see below), whose sum is σ = 57903152. Its totient is φ = 28951572.

The previous prime is 43427347. The next prime is 43427393. The reversal of 43427361 is 16372434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43427361 - 2⁹ = 43426849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43427161) 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 in 3 ways as a sum of consecutive naturals, for example, 7237891 + ... + 7237896.

It is an arithmetic number, because the mean of its divisors is an integer number (14475788).

Almost surely, 2^43427361 is an apocalyptic number.

It is an amenable number.

43427361 is a deficient number, since it is larger than the sum of its proper divisors (14475791).

43427361 is a wasteful number, since it uses less digits than its factorization.

43427361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475790.

The product of its digits is 12096, while the sum is 30.

The square root of 43427361 is about 6589.9439299587. The cubic root of 43427361 is about 351.4966144227.

Adding to 43427361 its reverse (16372434), we get a palindrome (59799795).

The spelling of 43427361 in words is "forty-three million, four hundred twenty-seven thousand, three hundred sixty-one".