312799 has 2 divisors, whose sum is σ = 312800. Its totient is φ = 312798.

The previous prime is 312779. The next prime is 312839. The reversal of 312799 is 997213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312799 - 2¹⁵ = 280031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312799.

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 312799.

It is not a weakly prime, because it can be changed into another prime (312709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156399 + 156400.

It is an arithmetic number, because the mean of its divisors is an integer number (156400).

2³¹²⁷⁹⁹ is an apocalyptic number.

312799 is a deficient number, since it is larger than the sum of its proper divisors (1).

312799 is an equidigital number, since it uses as much as digits as its factorization.

312799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 31.

The square root of 312799 is about 559.2843641655. The cubic root of 312799 is about 67.8820764723.

It can be divided in two parts, 312 and 799, that added together give a palindrome (1111).

The spelling of 312799 in words is "three hundred twelve thousand, seven hundred ninety-nine".