522726 has 8 divisors (see below), whose sum is σ = 1045464. Its totient is φ = 174240.

The previous prime is 522719. The next prime is 522737. The reversal of 522726 is 627225.

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

522726 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 522696 and 522705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43555 + ... + 43566.

It is an arithmetic number, because the mean of its divisors is an integer number (130683).

2⁵²²⁷²⁶ is an apocalyptic number.

522726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522726 is a wasteful number, since it uses less digits than its factorization.

522726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87126.

The product of its digits is 1680, while the sum is 24.

The square root of 522726 is about 722.9979253082. The cubic root of 522726 is about 80.5547895466.

It can be divided in two parts, 5227 and 26, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 522726 in words is "five hundred twenty-two thousand, seven hundred twenty-six".