660846 has 16 divisors (see below), whose sum is σ = 1338624. Its totient is φ = 217464.

The previous prime is 660833. The next prime is 660851. The reversal of 660846 is 648066.

It is a happy number.

660846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

660846 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (83664).

2⁶⁶⁰⁸⁴⁶ is an apocalyptic number.

660846 is an abundant number, since it is smaller than the sum of its proper divisors (677778).

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

660846 is a wasteful number, since it uses less digits than its factorization.

660846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 660846 is about 812.9243507240. The cubic root of 660846 is about 87.1030619028.

The spelling of 660846 in words is "six hundred sixty thousand, eight hundred forty-six".