828020843 has 4 divisors (see below), whose sum is σ = 891714768. Its totient is φ = 764326920.

The previous prime is 828020833. The next prime is 828020849. The reversal of 828020843 is 348020828.

828020843 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 828020843 - 2⁴ = 828020827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828020849) 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, 31846943 + ... + 31846968.

It is an arithmetic number, because the mean of its divisors is an integer number (222928692).

Almost surely, 2^828020843 is an apocalyptic number.

828020843 is a deficient number, since it is larger than the sum of its proper divisors (63693925).

828020843 is a wasteful number, since it uses less digits than its factorization.

828020843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63693924.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 828020843 is about 28775.3513097581. The cubic root of 828020843 is about 939.0320664940.

The spelling of 828020843 in words is "eight hundred twenty-eight million, twenty thousand, eight hundred forty-three".