15793 has 4 divisors (see below), whose sum is σ = 16740. Its totient is φ = 14848.

The previous prime is 15791. The next prime is 15797. The reversal of 15793 is 39751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39751 = 127 ⋅313.

It can be written as a sum of positive squares in 2 ways, for example, as 5184 + 10609 = 72^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 15793 - 2¹ = 15791 is a prime.

It is a Duffinian number.

15793 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (15791) 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, 448 + ... + 481.

It is an arithmetic number, because the mean of its divisors is an integer number (4185).

2¹⁵⁷⁹³ is an apocalyptic number.

It is an amenable number.

15793 is a deficient number, since it is larger than the sum of its proper divisors (947).

15793 is an equidigital number, since it uses as much as digits as its factorization.

15793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its digits is 945, while the sum is 25.

The square root of 15793 is about 125.6702033101. The cubic root of 15793 is about 25.0892807782.

It can be divided in two parts, 15 and 793, that added together give a palindrome (808).

The spelling of 15793 in words is "fifteen thousand, seven hundred ninety-three".