516628 has 12 divisors (see below), whose sum is σ = 1033312. Its totient is φ = 221400.

The previous prime is 516623. The next prime is 516643. The reversal of 516628 is 826615.

516628 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 18451 = 516628 / (5 + 1 + 6 + 6 + 2 + 8).

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 516596 and 516605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516623) 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, 9198 + ... + 9253.

2⁵¹⁶⁶²⁸ is an apocalyptic number.

It is an amenable number.

516628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516628 is a wasteful number, since it uses less digits than its factorization.

516628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18462 (or 18460 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 516628 is about 718.7683910691. The cubic root of 516628 is about 80.2403190283.

The spelling of 516628 in words is "five hundred sixteen thousand, six hundred twenty-eight".