663248 has 10 divisors (see below), whose sum is σ = 1285074. Its totient is φ = 331616.

The previous prime is 663241. The next prime is 663263. The reversal of 663248 is 842366.

It can be written as a sum of positive squares in only one way, i.e., 425104 + 238144 = 652^2 + 488^2 .

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 663248.

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 663248.

It is not an unprimeable number, because it can be changed into a prime (663241) by changing a digit.

663248 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 as a sum of consecutive naturals, namely, 20711 + ... + 20742.

2⁶⁶³²⁴⁸ is an apocalyptic number.

It is an amenable number.

663248 is a deficient number, since it is larger than the sum of its proper divisors (621826).

663248 is a wasteful number, since it uses less digits than its factorization.

663248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41461 (or 41455 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 663248 is about 814.4003929272. The cubic root of 663248 is about 87.2084664787.

The spelling of 663248 in words is "six hundred sixty-three thousand, two hundred forty-eight".