842909443 has 2 divisors, whose sum is σ = 842909444. Its totient is φ = 842909442.

The previous prime is 842909429. The next prime is 842909531. The reversal of 842909443 is 344909248.

842909443 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 a de Polignac number, because none of the positive numbers 2^k-842909443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 842909443.

It is not a weakly prime, because it can be changed into another prime (842909143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421454721 + 421454722.

It is an arithmetic number, because the mean of its divisors is an integer number (421454722).

Almost surely, 2^842909443 is an apocalyptic number.

842909443 is a deficient number, since it is larger than the sum of its proper divisors (1).

842909443 is an equidigital number, since it uses as much as digits as its factorization.

842909443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 842909443 is about 29032.9027656554. The cubic root of 842909443 is about 944.6268948793.

The spelling of 842909443 in words is "eight hundred forty-two million, nine hundred nine thousand, four hundred forty-three".