65722 has 8 divisors (see below), whose sum is σ = 104436. Its totient is φ = 30912.

The previous prime is 65719. The next prime is 65729. The reversal of 65722 is 22756.

It can be written as a sum of positive squares in 2 ways, for example, as 62001 + 3721 = 249^2 + 61^2 .

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

It is a d-powerful number, because it can be written as 6⁶ + 5² + 7⁴ + 2⁸ + 2¹⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 65693 and 65702.

It is not an unprimeable number, because it can be changed into a prime (65729) 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, 933 + ... + 1000.

2⁶⁵⁷²² is an apocalyptic number.

65722 is a deficient number, since it is larger than the sum of its proper divisors (38714).

65722 is a wasteful number, since it uses less digits than its factorization.

65722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its digits is 840, while the sum is 22.

The square root of 65722 is about 256.3630238548. The cubic root of 65722 is about 40.3555797104.

It can be divided in two parts, 65 and 722, that added together give a palindrome (787).

The spelling of 65722 in words is "sixty-five thousand, seven hundred twenty-two".