663496 has 16 divisors (see below), whose sum is σ = 1253340. Its totient is φ = 329280.

The previous prime is 663463. The next prime is 663517. The reversal of 663496 is 694366.

663496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 662596 + 900 = 814^2 + 30^2 .

It is an Ulam number.

It is an unprimeable number.

663496 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, 1366 + ... + 1786.

2⁶⁶³⁴⁹⁶ is an apocalyptic number.

It is an amenable number.

663496 is a deficient number, since it is larger than the sum of its proper divisors (589844).

663496 is a wasteful number, since it uses less digits than its factorization.

663496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 620 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 663496 is about 814.5526379553. The cubic root of 663496 is about 87.2193347133.

The spelling of 663496 in words is "six hundred sixty-three thousand, four hundred ninety-six".