791789 has 2 divisors, whose sum is σ = 791790. Its totient is φ = 791788.

The previous prime is 791783. The next prime is 791797. The reversal of 791789 is 987197.

791789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779689 + 12100 = 883^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 791789 - 2⁴ = 791773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395894 + 395895.

It is an arithmetic number, because the mean of its divisors is an integer number (395895).

2⁷⁹¹⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

791789 is a deficient number, since it is larger than the sum of its proper divisors (1).

791789 is an equidigital number, since it uses as much as digits as its factorization.

791789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 41.

The square root of 791789 is about 889.8252637456. The cubic root of 791789 is about 92.5130831263.

The spelling of 791789 in words is "seven hundred ninety-one thousand, seven hundred eighty-nine".