520706 has 8 divisors (see below), whose sum is σ = 786240. Its totient is φ = 258628.

The previous prime is 520703. The next prime is 520717. The reversal of 520706 is 607025.

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

It is a super-2 number, since 2×520706² = 542269476872, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (520703) 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, 446 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2⁵²⁰⁷⁰⁶ is an apocalyptic number.

520706 is a deficient number, since it is larger than the sum of its proper divisors (265534).

520706 is a wasteful number, since it uses less digits than its factorization.

520706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 520706 is about 721.5996119733. The cubic root of 520706 is about 80.4508914370.

The spelling of 520706 in words is "five hundred twenty thousand, seven hundred six".