1726 has 4 divisors (see below), whose sum is σ = 2592. Its totient is φ = 862.

The previous prime is 1723. The next prime is 1733. The reversal of 1726 is 6271.

1726 is nontrivially palindromic in base 13.

1726 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

1726 is an undulating number in base 13.

1726 is strictly pandigital in base 5.

It is a plaindrome in base 16.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430 + ... + 433.

It is an arithmetic number, because the mean of its divisors is an integer number (648).

1726 is a deficient number, since it is larger than the sum of its proper divisors (866).

1726 is an equidigital number, since it uses as much as digits as its factorization.

1726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 84, while the sum is 16.

The square root of 1726 is about 41.5451561557. The cubic root of 1726 is about 11.9953685831.

Adding to 1726 its reverse (6271), we get a palindrome (7997).

It can be divided in two parts, 1 and 726, that added together give a palindrome (727).

The spelling of 1726 in words is "one thousand, seven hundred twenty-six".