43407943 has 2 divisors, whose sum is σ = 43407944. Its totient is φ = 43407942.

The previous prime is 43407937. The next prime is 43407961. The reversal of 43407943 is 34970434.

43407943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43407943 - 2⁵ = 43407911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43407899 and 43407908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43402943) 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 as a sum of consecutive naturals, namely, 21703971 + 21703972.

It is an arithmetic number, because the mean of its divisors is an integer number (21703972).

Almost surely, 2^43407943 is an apocalyptic number.

43407943 is a deficient number, since it is larger than the sum of its proper divisors (1).

43407943 is an equidigital number, since it uses as much as digits as its factorization.

43407943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 43407943 is about 6588.4704598260. The cubic root of 43407943 is about 351.4442175109. Note that the first 3 decimals are identical.

The spelling of 43407943 in words is "forty-three million, four hundred seven thousand, nine hundred forty-three".