791128 has 16 divisors (see below), whose sum is σ = 1597680. Its totient is φ = 365088.

The previous prime is 791117. The next prime is 791137. The reversal of 791128 is 821197.

It is a junction number, because it is equal to n+sod(n) for n = 791096 and 791105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3700 + ... + 3907.

It is an arithmetic number, because the mean of its divisors is an integer number (99855).

2⁷⁹¹¹²⁸ is an apocalyptic number.

It is an amenable number.

791128 is an abundant number, since it is smaller than the sum of its proper divisors (806552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

791128 is a wasteful number, since it uses less digits than its factorization.

791128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7626 (or 7622 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 791128 is about 889.4537649591. The cubic root of 791128 is about 92.4873320855.

It can be divided in two parts, 791 and 128, that added together give a palindrome (919).

The spelling of 791128 in words is "seven hundred ninety-one thousand, one hundred twenty-eight".