3943000043 has 4 divisors (see below), whose sum is σ = 4174941240. Its totient is φ = 3711058848.

The previous prime is 3943000037. The next prime is 3943000067. The reversal of 3943000043 is 3400003493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3400003493 = 10141 ⋅335273.

It is a cyclic number.

It is not a de Polignac number, because 3943000043 - 2¹⁴ = 3942983659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3942999976 and 3943000021.

It is not an unprimeable number, because it can be changed into a prime (3943005043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115970573 + ... + 115970606.

It is an arithmetic number, because the mean of its divisors is an integer number (1043735310).

Almost surely, 2^3943000043 is an apocalyptic number.

3943000043 is a deficient number, since it is larger than the sum of its proper divisors (231941197).

3943000043 is a wasteful number, since it uses less digits than its factorization.

3943000043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231941196.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 3943000043 is about 62793.3120881516. The cubic root of 3943000043 is about 1579.8248007146.

The spelling of 3943000043 in words is "three billion, nine hundred forty-three million, forty-three", and thus it is an aban number.