843135028 has 12 divisors (see below), whose sum is σ = 1475832960. Its totient is φ = 421468472.

The previous prime is 843135019. The next prime is 843135047. The reversal of 843135028 is 820531348.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 843134984 and 843135002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3598 + ... + 41221.

It is an arithmetic number, because the mean of its divisors is an integer number (122986080).

Almost surely, 2^843135028 is an apocalyptic number.

It is an amenable number.

843135028 is a deficient number, since it is larger than the sum of its proper divisors (632697932).

843135028 is a wasteful number, since it uses less digits than its factorization.

843135028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49526 (or 49524 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 843135028 is about 29036.7874944871. The cubic root of 843135028 is about 944.7111564620.

The spelling of 843135028 in words is "eight hundred forty-three million, one hundred thirty-five thousand, twenty-eight".