1799 has 4 divisors (see below), whose sum is σ = 2064. Its totient is φ = 1536.

The previous prime is 1789. The next prime is 1801. The reversal of 1799 is 9971.

1799 is nontrivially palindromic in base 2 and base 16.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1799 - 2⁴ = 1783 is a prime.

It is a Duffinian number.

1799 is an undulating number in base 16.

1799 is a modest number, since divided by 99 gives 17 as remainder.

It is a plaindrome in base 10 and base 15.

It is a nialpdrome in base 13.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1709) 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, 122 + ... + 135.

It is an arithmetic number, because the mean of its divisors is an integer number (516).

1799 is a deficient number, since it is larger than the sum of its proper divisors (265).

1799 is an equidigital number, since it uses as much as digits as its factorization.

1799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 567, while the sum is 26.

The square root of 1799 is about 42.4146201209. The cubic root of 1799 is about 12.1621509065.

The spelling of 1799 in words is "one thousand, seven hundred ninety-nine".