520628 has 12 divisors (see below), whose sum is σ = 950880. Its totient is φ = 248952.

The previous prime is 520621. The next prime is 520631. The reversal of 520628 is 826025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520621) 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, 2738 + ... + 2921.

It is an arithmetic number, because the mean of its divisors is an integer number (79240).

2⁵²⁰⁶²⁸ is an apocalyptic number.

It is an amenable number.

520628 is a deficient number, since it is larger than the sum of its proper divisors (430252).

520628 is a wasteful number, since it uses less digits than its factorization.

520628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686 (or 5684 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 520628 is about 721.5455633569. The cubic root of 520628 is about 80.4468741458.

The spelling of 520628 in words is "five hundred twenty thousand, six hundred twenty-eight".