7799 has 4 divisors (see below), whose sum is σ = 8520.
Its totient is φ = 7080.
The previous prime is 7793. The next prime is 7817. The reversal of 7799 is 9977.
7799 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 9977 = 11 ⋅907.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-7799 is a prime.
It is a Duffinian number.
7799 is a modest number, since divided by 99 gives 77 as remainder.
It is a plaindrome in base 10 and base 15.
It is a zygodrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7793) 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, 344 + ... + 365.
It is an arithmetic number, because the mean of its divisors is an integer number (2130).
27799 is an apocalyptic number.
7799 is a deficient number, since it is larger than the sum of its proper divisors (721).
7799 is a wasteful number, since it uses less digits than its factorization.
7799 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 720.
The product of its digits is 3969, while the sum is 32.
The square root of 7799 is about 88.3119470966.
The cubic root of 7799 is about 19.8310772724.
The spelling of 7799 in words is "seven thousand, seven hundred ninety-nine".