43856089 has 4 divisors (see below), whose sum is σ = 43894224. Its totient is φ = 43817956.

The previous prime is 43856053. The next prime is 43856093. The reversal of 43856089 is 98065834.

43856089 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43856089 - 2⁹ = 43855577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43856489) 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 in 3 ways as a sum of consecutive naturals, for example, 17287 + ... + 19660.

It is an arithmetic number, because the mean of its divisors is an integer number (10973556).

Almost surely, 2^43856089 is an apocalyptic number.

It is an amenable number.

43856089 is a deficient number, since it is larger than the sum of its proper divisors (38135).

43856089 is a wasteful number, since it uses less digits than its factorization.

43856089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38134.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 43856089 is about 6622.3929964930. The cubic root of 43856089 is about 352.6495222688.

The spelling of 43856089 in words is "forty-three million, eight hundred fifty-six thousand, eighty-nine".