797791 has 8 divisors (see below), whose sum is σ = 848000. Its totient is φ = 748440.

The previous prime is 797773. The next prime is 797813. The reversal of 797791 is 197797.

797791 = T₁₃₈ + T₁₃₉ + ... + T₁₉₄.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 797791 - 2¹⁹ = 273503 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 (797701) 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 7 ways as a sum of consecutive naturals, for example, 3676 + ... + 3886.

It is an arithmetic number, because the mean of its divisors is an integer number (106000).

2⁷⁹⁷⁷⁹¹ is an apocalyptic number.

797791 is a deficient number, since it is larger than the sum of its proper divisors (50209).

797791 is a wasteful number, since it uses less digits than its factorization.

797791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its digits is 27783, while the sum is 40.

The square root of 797791 is about 893.1914688352. The cubic root of 797791 is about 92.7462539929.

The spelling of 797791 in words is "seven hundred ninety-seven thousand, seven hundred ninety-one".