791837856 has 144 divisors (see below), whose sum is σ = 2366582400. Its totient is φ = 260402688.

The previous prime is 791837833. The next prime is 791837857. The reversal of 791837856 is 658738197.

791837856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (791837857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613660 + ... + 614948.

It is an arithmetic number, because the mean of its divisors is an integer number (16434600).

Almost surely, 2^791837856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791837856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183291200).

791837856 is an abundant number, since it is smaller than the sum of its proper divisors (1574744544).

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

791837856 is a wasteful number, since it uses less digits than its factorization.

791837856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1373 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 791837856 is about 28139.6136434031. The cubic root of 791837856 is about 925.1498587491.

The spelling of 791837856 in words is "seven hundred ninety-one million, eight hundred thirty-seven thousand, eight hundred fifty-six".