999996043 has 2 divisors, whose sum is σ = 999996044. Its totient is φ = 999996042.

The previous prime is 999996037. The next prime is 999996071. The reversal of 999996043 is 340699999.

It is a weak prime.

It is an emirp because it is prime and its reverse (340699999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999996043 - 2⁹ = 999995531 is a prime.

It is not a weakly prime, because it can be changed into another prime (999996073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499998021 + 499998022.

It is an arithmetic number, because the mean of its divisors is an integer number (499998022).

Almost surely, 2^999996043 is an apocalyptic number.

999996043 is a deficient number, since it is larger than the sum of its proper divisors (1).

999996043 is an equidigital number, since it uses as much as digits as its factorization.

999996043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4251528, while the sum is 58.

The square root of 999996043 is about 31622.7140359584. The cubic root of 999996043 is about 999.9986809983.

The spelling of 999996043 in words is "nine hundred ninety-nine million, nine hundred ninety-six thousand, forty-three".