539722 has 8 divisors (see below), whose sum is σ = 812772. Its totient is φ = 268800.

The previous prime is 539713. The next prime is 539723. The reversal of 539722 is 227935.

539722 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 531441 + 8281 = 729^2 + 91^2 .

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 5⁴ + 3¹² + 7 + 9⁴ + 2⁶ + 2¹⁰ .

It is not an unprimeable number, because it can be changed into a prime (539723) 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, 522 + ... + 1162.

2⁵³⁹⁷²² is an apocalyptic number.

539722 is a deficient number, since it is larger than the sum of its proper divisors (273050).

539722 is a wasteful number, since it uses less digits than its factorization.

539722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its digits is 3780, while the sum is 28.

The square root of 539722 is about 734.6577434425. The cubic root of 539722 is about 81.4185518751.

The spelling of 539722 in words is "five hundred thirty-nine thousand, seven hundred twenty-two".