520802 has 8 divisors (see below), whose sum is σ = 788700. Its totient is φ = 257904.

The previous prime is 520787. The next prime is 520813. The reversal of 520802 is 208025.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 961 = 721^2 + 31^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977 + ... + 1412.

2⁵²⁰⁸⁰² is an apocalyptic number.

520802 is a deficient number, since it is larger than the sum of its proper divisors (267898).

520802 is a wasteful number, since it uses less digits than its factorization.

520802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 520802 is about 721.6661277904. Note that the first 3 decimals coincide. The cubic root of 520802 is about 80.4558352447.

Adding to 520802 its reverse (208025), we get a palindrome (728827).

The spelling of 520802 in words is "five hundred twenty thousand, eight hundred two".