660036 has 24 divisors (see below), whose sum is σ = 1658944. Its totient is φ = 203040.

The previous prime is 660029. The next prime is 660047. The reversal of 660036 is 630066.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 659994 and 660021.

It is an unprimeable number.

660036 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, 1960 + ... + 2271.

2⁶⁶⁰⁰³⁶ is an apocalyptic number.

It is an amenable number.

660036 is an abundant number, since it is smaller than the sum of its proper divisors (998908).

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

660036 is a wasteful number, since it uses less digits than its factorization.

660036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 660036 is about 812.4259966298. The cubic root of 660036 is about 87.0674598989.

The spelling of 660036 in words is "six hundred sixty thousand, thirty-six".