513726 has 8 divisors (see below), whose sum is σ = 1027464. Its totient is φ = 171240.

The previous prime is 513719. The next prime is 513727. The reversal of 513726 is 627315.

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

513726 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 513696 and 513705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513727) 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, 42805 + ... + 42816.

It is an arithmetic number, because the mean of its divisors is an integer number (128433).

2⁵¹³⁷²⁶ is an apocalyptic number.

513726 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.

513726 is a wasteful number, since it uses less digits than its factorization.

513726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85626.

The product of its digits is 1260, while the sum is 24.

The square root of 513726 is about 716.7468172235. The cubic root of 513726 is about 80.0897950063.

It can be divided in two parts, 5 and 13726, that added together give a palindrome (13731).

The spelling of 513726 in words is "five hundred thirteen thousand, seven hundred twenty-six".