791799 has 4 divisors (see below), whose sum is σ = 1055736. Its totient is φ = 527864.

The previous prime is 791797. The next prime is 791801. The reversal of 791799 is 997197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997197 = 3 ⋅332399.

It is an interprime number because it is at equal distance from previous prime (791797) and next prime (791801).

It is a cyclic number.

It is not a de Polignac number, because 791799 - 2¹ = 791797 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 791799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791797) by changing a digit.

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, 131964 + ... + 131969.

It is an arithmetic number, because the mean of its divisors is an integer number (263934).

2⁷⁹¹⁷⁹⁹ is an apocalyptic number.

791799 is a deficient number, since it is larger than the sum of its proper divisors (263937).

791799 is a wasteful number, since it uses less digits than its factorization.

791799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263936.

The product of its digits is 35721, while the sum is 42.

The square root of 791799 is about 889.8308828086. The cubic root of 791799 is about 92.5134725933.

It can be divided in two parts, 7 and 91799, that added together give a triangular number (91806 = T₄₂₈).

The spelling of 791799 in words is "seven hundred ninety-one thousand, seven hundred ninety-nine".