663012 has 48 divisors (see below), whose sum is σ = 1966720. Its totient is φ = 189216.

The previous prime is 663007. The next prime is 663031. The reversal of 663012 is 210366.

It is a happy number.

663012 is a `hidden beast` number, since 663 + 0 + 1 + 2 = 666.

663012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318 + ... + 1194.

2⁶⁶³⁰¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983360).

663012 is an abundant number, since it is smaller than the sum of its proper divisors (1303708).

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

663012 is a wasteful number, since it uses less digits than its factorization.

663012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 663012 is about 814.2554881608. The cubic root of 663012 is about 87.1981216104.

Adding to 663012 its reverse (210366), we get a palindrome (873378).

The spelling of 663012 in words is "six hundred sixty-three thousand, twelve".