659493 has 6 divisors (see below), whose sum is σ = 952614. Its totient is φ = 439656.

The previous prime is 659473. The next prime is 659497. The reversal of 659493 is 394956.

It can be written as a sum of positive squares in only one way, i.e., 459684 + 199809 = 678^2 + 447^2 .

It is not a de Polignac number, because 659493 - 2⁸ = 659237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36630 + ... + 36647.

It is an arithmetic number, because the mean of its divisors is an integer number (158769).

2⁶⁵⁹⁴⁹³ is an apocalyptic number.

It is an amenable number.

659493 is a deficient number, since it is larger than the sum of its proper divisors (293121).

659493 is a wasteful number, since it uses less digits than its factorization.

659493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73283 (or 73280 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 659493 is about 812.0917435857. The cubic root of 659493 is about 87.0435770594.

The spelling of 659493 in words is "six hundred fifty-nine thousand, four hundred ninety-three".