311799 has 12 divisors (see below), whose sum is σ = 435176. Its totient is φ = 198432.

The previous prime is 311791. The next prime is 311803. The reversal of 311799 is 997113.

311799 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 311799 - 2³ = 311791 is a prime.

It is an Ulam number.

It is a Duffinian number.

311799 is strictly pandigital in base 7.

311799 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 311799.

It is not an unprimeable number, because it can be changed into a prime (311791) 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 11 ways as a sum of consecutive naturals, for example, 5857 + ... + 5909.

2³¹¹⁷⁹⁹ is an apocalyptic number.

311799 is a deficient number, since it is larger than the sum of its proper divisors (123377).

311799 is an equidigital number, since it uses as much as digits as its factorization.

311799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 93 counting only the distinct ones).

The product of its digits is 1701, while the sum is 30.

The square root of 311799 is about 558.3896489012. The cubic root of 311799 is about 67.8096609131.

It can be divided in two parts, 31 and 1799, that added together give a triangular number (1830 = T₆₀).

The spelling of 311799 in words is "three hundred eleven thousand, seven hundred ninety-nine".