799777 has 4 divisors (see below), whose sum is σ = 872496. Its totient is φ = 727060.

The previous prime is 799759. The next prime is 799789. The reversal of 799777 is 777997.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 799777 - 2¹¹ = 797729 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36343 + ... + 36364.

It is an arithmetic number, because the mean of its divisors is an integer number (218124).

2⁷⁹⁹⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

799777 is a deficient number, since it is larger than the sum of its proper divisors (72719).

799777 is a wasteful number, since it uses less digits than its factorization.

799777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72718.

The product of its digits is 194481, while the sum is 46.

The square root of 799777 is about 894.3025215217. The cubic root of 799777 is about 92.8231502514.

The spelling of 799777 in words is "seven hundred ninety-nine thousand, seven hundred seventy-seven".