13799 has 2 divisors, whose sum is σ = 13800. Its totient is φ = 13798.

The previous prime is 13789. The next prime is 13807. The reversal of 13799 is 99731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13799 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6899 + 6900.

It is an arithmetic number, because the mean of its divisors is an integer number (6900).

2¹³⁷⁹⁹ is an apocalyptic number.

13799 is a deficient number, since it is larger than the sum of its proper divisors (1).

13799 is an equidigital number, since it uses as much as digits as its factorization.

13799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1701, while the sum is 29.

The square root of 13799 is about 117.4691448849. The cubic root of 13799 is about 23.9855236773.

The spelling of 13799 in words is "thirteen thousand, seven hundred ninety-nine".