43879943 has 2 divisors, whose sum is σ = 43879944. Its totient is φ = 43879942.

The previous prime is 43879939. The next prime is 43879961. The reversal of 43879943 is 34997834.

43879943 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 43879943 - 2² = 43879939 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43879993) 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, 21939971 + 21939972.

It is an arithmetic number, because the mean of its divisors is an integer number (21939972).

Almost surely, 2^43879943 is an apocalyptic number.

43879943 is a deficient number, since it is larger than the sum of its proper divisors (1).

43879943 is an equidigital number, since it uses as much as digits as its factorization.

43879943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 43879943 is about 6624.1937622627. The cubic root of 43879943 is about 352.7134478429.

The spelling of 43879943 in words is "forty-three million, eight hundred seventy-nine thousand, nine hundred forty-three".