520677 has 6 divisors (see below), whose sum is σ = 752102. Its totient is φ = 347112.

The previous prime is 520649. The next prime is 520679. The reversal of 520677 is 776025.

It can be written as a sum of positive squares in only one way, i.e., 349281 + 171396 = 591^2 + 414^2 .

It is not a de Polignac number, because 520677 - 2⁷ = 520549 is a prime.

It is a super-2 number, since 2×520677² = 542209076658, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 520677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28918 + ... + 28935.

2⁵²⁰⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

520677 is a deficient number, since it is larger than the sum of its proper divisors (231425).

520677 is a wasteful number, since it uses less digits than its factorization.

520677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57859 (or 57856 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 520677 is about 721.5795174477. The cubic root of 520677 is about 80.4493978756.

The spelling of 520677 in words is "five hundred twenty thousand, six hundred seventy-seven".