660936 has 16 divisors (see below), whose sum is σ = 1652400. Its totient is φ = 220304.

The previous prime is 660923. The next prime is 660941. The reversal of 660936 is 639066.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 660936.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13746 + ... + 13793.

It is an arithmetic number, because the mean of its divisors is an integer number (103275).

2⁶⁶⁰⁹³⁶ is an apocalyptic number.

It is an amenable number.

660936 is an abundant number, since it is smaller than the sum of its proper divisors (991464).

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

660936 is a wasteful number, since it uses less digits than its factorization.

660936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27548 (or 27544 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 660936 is about 812.9797045437. The cubic root of 660936 is about 87.1070158849.

It can be divided in two parts, 660 and 936, that added together give a triangular number (1596 = T₅₆).

The spelling of 660936 in words is "six hundred sixty thousand, nine hundred thirty-six".