650628 has 72 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 187200.

The previous prime is 650627. The next prime is 650669. The reversal of 650628 is 826056.

650628 is a `hidden beast` number, since 650 + 6 + 2 + 8 = 666.

650628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (650623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12250 + ... + 12302.

It is an arithmetic number, because the mean of its divisors is an integer number (26208).

2⁶⁵⁰⁶²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943488).

650628 is an abundant number, since it is smaller than the sum of its proper divisors (1236348).

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

650628 is a wasteful number, since it uses less digits than its factorization.

650628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 650628 is about 806.6151498701. The cubic root of 650628 is about 86.6517988960.

The spelling of 650628 in words is "six hundred fifty thousand, six hundred twenty-eight".