659538 has 24 divisors (see below), whose sum is σ = 1559376. Its totient is φ = 199800.

The previous prime is 659531. The next prime is 659539. The reversal of 659538 is 835956.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (659531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1468 + ... + 1863.

It is an arithmetic number, because the mean of its divisors is an integer number (64974).

2⁶⁵⁹⁵³⁸ is an apocalyptic number.

659538 is an abundant number, since it is smaller than the sum of its proper divisors (899838).

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

659538 is a wasteful number, since it uses less digits than its factorization.

659538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350 (or 3347 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 659538 is about 812.1194493423. The cubic root of 659538 is about 87.0455567984.

The spelling of 659538 in words is "six hundred fifty-nine thousand, five hundred thirty-eight".