513706 has 16 divisors (see below), whose sum is σ = 845640. Its totient is φ = 232960.

The previous prime is 513697. The next prime is 513719. The reversal of 513706 is 607315.

It can be written as a sum of positive squares in 4 ways, for example, as 455625 + 58081 = 675^2 + 241^2 .

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726 + ... + 1246.

2⁵¹³⁷⁰⁶ is an apocalyptic number.

513706 is a deficient number, since it is larger than the sum of its proper divisors (331934).

513706 is a wasteful number, since it uses less digits than its factorization.

513706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 513706 is about 716.7328651597. The cubic root of 513706 is about 80.0887556607.

The spelling of 513706 in words is "five hundred thirteen thousand, seven hundred six".