43868243 has 2 divisors, whose sum is σ = 43868244. Its totient is φ = 43868242.

The previous prime is 43868233. The next prime is 43868263. The reversal of 43868243 is 34286834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43868243 - 2⁶ = 43868179 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 43868197 and 43868206.

It is not a weakly prime, because it can be changed into another prime (43868203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21934121 + 21934122.

It is an arithmetic number, because the mean of its divisors is an integer number (21934122).

Almost surely, 2^43868243 is an apocalyptic number.

43868243 is a deficient number, since it is larger than the sum of its proper divisors (1).

43868243 is an equidigital number, since it uses as much as digits as its factorization.

43868243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 38.

The square root of 43868243 is about 6623.3105770453. The cubic root of 43868243 is about 352.6820962816.

The spelling of 43868243 in words is "forty-three million, eight hundred sixty-eight thousand, two hundred forty-three".