663492 has 12 divisors (see below), whose sum is σ = 1548176. Its totient is φ = 221160.

The previous prime is 663463. The next prime is 663517. The reversal of 663492 is 294366.

663492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

663492 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 3 ways as a sum of consecutive naturals, for example, 27634 + ... + 27657.

2⁶⁶³⁴⁹² is an apocalyptic number.

It is an amenable number.

663492 is an abundant number, since it is smaller than the sum of its proper divisors (884684).

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

663492 is a wasteful number, since it uses less digits than its factorization.

663492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55298 (or 55296 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 663492 is about 814.5501826161. The cubic root of 663492 is about 87.2191594407.

The spelling of 663492 in words is "six hundred sixty-three thousand, four hundred ninety-two".