659428 has 24 divisors (see below), whose sum is σ = 1439424. Its totient is φ = 256800.

The previous prime is 659423. The next prime is 659437. The reversal of 659428 is 824956.

It is a happy number.

659428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 659393 and 659402.

It is not an unprimeable number, because it can be changed into a prime (659423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763 + ... + 1378.

It is an arithmetic number, because the mean of its divisors is an integer number (59976).

2⁶⁵⁹⁴²⁸ is an apocalyptic number.

It is an amenable number.

659428 is an abundant number, since it is smaller than the sum of its proper divisors (779996).

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

659428 is a wasteful number, since it uses less digits than its factorization.

659428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163 (or 2161 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 659428 is about 812.0517224906. The cubic root of 659428 is about 87.0407172776.

The spelling of 659428 in words is "six hundred fifty-nine thousand, four hundred twenty-eight".