834905243 has 4 divisors (see below), whose sum is σ = 854321688. Its totient is φ = 815488800.

The previous prime is 834905219. The next prime is 834905257. The reversal of 834905243 is 342509438.

834905243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 834905243 - 2²⁴ = 818128027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 834905197 and 834905206.

It is not an unprimeable number, because it can be changed into a prime (834905443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9708158 + ... + 9708243.

It is an arithmetic number, because the mean of its divisors is an integer number (213580422).

Almost surely, 2^834905243 is an apocalyptic number.

834905243 is a deficient number, since it is larger than the sum of its proper divisors (19416445).

834905243 is a wasteful number, since it uses less digits than its factorization.

834905243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19416444.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 834905243 is about 28894.7269064790. The cubic root of 834905243 is about 941.6273466897.

The spelling of 834905243 in words is "eight hundred thirty-four million, nine hundred five thousand, two hundred forty-three".