65726 has 8 divisors (see below), whose sum is σ = 100440. Its totient is φ = 32248.

The previous prime is 65719. The next prime is 65729. The reversal of 65726 is 62756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 65695 and 65704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65729) by changing a digit.

65726 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161 + ... + 396.

It is an arithmetic number, because the mean of its divisors is an integer number (12555).

2⁶⁵⁷²⁶ is an apocalyptic number.

65726 is a deficient number, since it is larger than the sum of its proper divisors (34714).

65726 is a wasteful number, since it uses less digits than its factorization.

65726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618.

The product of its digits is 2520, while the sum is 26.

The square root of 65726 is about 256.3708251732. The cubic root of 65726 is about 40.3563984065.

The spelling of 65726 in words is "sixty-five thousand, seven hundred twenty-six".