660339 has 16 divisors (see below), whose sum is σ = 1006240. Its totient is φ = 427680.

The previous prime is 660337. The next prime is 660347. The reversal of 660339 is 933066.

660339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660339 - 2¹ = 660337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 660339.

It is not an unprimeable number, because it can be changed into a prime (660337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669 + ... + 1329.

It is an arithmetic number, because the mean of its divisors is an integer number (62890).

2⁶⁶⁰³³⁹ is an apocalyptic number.

660339 is a deficient number, since it is larger than the sum of its proper divisors (345901).

660339 is a wasteful number, since it uses less digits than its factorization.

660339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 660339 is about 812.6124537564. The cubic root of 660339 is about 87.0807810937.

It can be divided in two parts, 660 and 339, that added together give a palindrome (999).

The spelling of 660339 in words is "six hundred sixty thousand, three hundred thirty-nine".