43734073 has 4 divisors (see below), whose sum is σ = 43773940. Its totient is φ = 43694208.

The previous prime is 43734071. The next prime is 43734079. The reversal of 43734073 is 37043734.

43734073 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3892729 + 39841344 = 1973^2 + 6312^2 .

It is a cyclic number.

It is not a de Polignac number, because 43734073 - 2¹ = 43734071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43734071) 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, 18240 + ... + 20497.

It is an arithmetic number, because the mean of its divisors is an integer number (10943485).

Almost surely, 2^43734073 is an apocalyptic number.

It is an amenable number.

43734073 is a deficient number, since it is larger than the sum of its proper divisors (39867).

43734073 is a wasteful number, since it uses less digits than its factorization.

43734073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39866.

The product of its (nonzero) digits is 21168, while the sum is 31.

The square root of 43734073 is about 6613.1742000344. The cubic root of 43734073 is about 352.3221724318.

The spelling of 43734073 in words is "forty-three million, seven hundred thirty-four thousand, seventy-three".