663296 has 18 divisors (see below), whose sum is σ = 1324512. Its totient is φ = 331520.

The previous prime is 663283. The next prime is 663301. The reversal of 663296 is 692366.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 663296.

It is an unprimeable number.

663296 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040 + ... + 1551.

It is an arithmetic number, because the mean of its divisors is an integer number (73584).

2⁶⁶³²⁹⁶ is an apocalyptic number.

It is an amenable number.

663296 is a deficient number, since it is larger than the sum of its proper divisors (661216).

663296 is an equidigital number, since it uses as much as digits as its factorization.

663296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607 (or 2593 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 663296 is about 814.4298619280. The cubic root of 663296 is about 87.2105702194.

It can be divided in two parts, 663 and 296, that added together give a palindrome (959).

The spelling of 663296 in words is "six hundred sixty-three thousand, two hundred ninety-six".