43705073 has 4 divisors (see below), whose sum is σ = 46005360. Its totient is φ = 41404788.

The previous prime is 43705049. The next prime is 43705087. The reversal of 43705073 is 37050734.

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 43705073 - 2¹² = 43700977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43705003) 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, 1150115 + ... + 1150152.

It is an arithmetic number, because the mean of its divisors is an integer number (11501340).

Almost surely, 2^43705073 is an apocalyptic number.

It is an amenable number.

43705073 is a deficient number, since it is larger than the sum of its proper divisors (2300287).

43705073 is a wasteful number, since it uses less digits than its factorization.

43705073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300286.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 43705073 is about 6610.9812433556. The cubic root of 43705073 is about 352.2442804397.

The spelling of 43705073 in words is "forty-three million, seven hundred five thousand, seventy-three".