791855 has 4 divisors (see below), whose sum is σ = 950232. Its totient is φ = 633480.

The previous prime is 791851. The next prime is 791887. The reversal of 791855 is 558197.

791855 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 not a de Polignac number, because 791855 - 2² = 791851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791851) 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, 79181 + ... + 79190.

It is an arithmetic number, because the mean of its divisors is an integer number (237558).

2⁷⁹¹⁸⁵⁵ is an apocalyptic number.

791855 is a deficient number, since it is larger than the sum of its proper divisors (158377).

791855 is a wasteful number, since it uses less digits than its factorization.

791855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158376.

The product of its digits is 12600, while the sum is 35.

The square root of 791855 is about 889.8623489057. The cubic root of 791855 is about 92.5156535476.

The spelling of 791855 in words is "seven hundred ninety-one thousand, eight hundred fifty-five".