43005073 has 4 divisors (see below), whose sum is σ = 43333488. Its totient is φ = 42676660.

The previous prime is 43005059. The next prime is 43005077. The reversal of 43005073 is 37050034.

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 43005073 - 2⁹ = 43004561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43005077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164011 + ... + 164272.

It is an arithmetic number, because the mean of its divisors is an integer number (10833372).

Almost surely, 2^43005073 is an apocalyptic number.

It is an amenable number.

43005073 is a deficient number, since it is larger than the sum of its proper divisors (328415).

43005073 is a wasteful number, since it uses less digits than its factorization.

43005073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328414.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 43005073 is about 6557.8253255176. The cubic root of 43005073 is about 350.3535828135.

The spelling of 43005073 in words is "forty-three million, five thousand, seventy-three".