43875073 has 4 divisors (see below), whose sum is σ = 47863728. Its totient is φ = 39886420.

The previous prime is 43875067. The next prime is 43875077. The reversal of 43875073 is 37057834.

43875073 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 43875073 - 2²⁵ = 10320641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43875077) 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, 1994311 + ... + 1994332.

It is an arithmetic number, because the mean of its divisors is an integer number (11965932).

Almost surely, 2^43875073 is an apocalyptic number.

It is an amenable number.

43875073 is a deficient number, since it is larger than the sum of its proper divisors (3988655).

43875073 is a wasteful number, since it uses less digits than its factorization.

43875073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988654.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 43875073 is about 6623.8261601585. The cubic root of 43875073 is about 352.7003987676.

The spelling of 43875073 in words is "forty-three million, eight hundred seventy-five thousand, seventy-three".