3943000069 has 2 divisors, whose sum is σ = 3943000070. Its totient is φ = 3943000068.

The previous prime is 3943000067. The next prime is 3943000091. The reversal of 3943000069 is 9600003493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3371311969 + 571688100 = 58063^2 + 23910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3943000069 - 2¹ = 3943000067 is a prime.

It is a super-2 number, since 2×3943000069² = 31094499088268009522, which contains 22 as substring.

Together with 3943000067, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3942999998 and 3943000043.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3943000067) 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, 1971500034 + 1971500035.

It is an arithmetic number, because the mean of its divisors is an integer number (1971500035).

Almost surely, 2^3943000069 is an apocalyptic number.

It is an amenable number.

3943000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

3943000069 is an equidigital number, since it uses as much as digits as its factorization.

3943000069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 3943000069 is about 62793.3122951800. The cubic root of 3943000069 is about 1579.8248041871.

The spelling of 3943000069 in words is "three billion, nine hundred forty-three million, sixty-nine", and thus it is an aban number.