43073263 has 2 divisors, whose sum is σ = 43073264. Its totient is φ = 43073262.

The previous prime is 43073243. The next prime is 43073267. The reversal of 43073263 is 36237034.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43073263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43073267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21536631 + 21536632.

It is an arithmetic number, because the mean of its divisors is an integer number (21536632).

Almost surely, 2^43073263 is an apocalyptic number.

43073263 is a deficient number, since it is larger than the sum of its proper divisors (1).

43073263 is an equidigital number, since it uses as much as digits as its factorization.

43073263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 43073263 is about 6563.0223982552. The cubic root of 43073263 is about 350.5386617128.

The spelling of 43073263 in words is "forty-three million, seventy-three thousand, two hundred sixty-three".