1663248 has 20 divisors (see below), whose sum is σ = 4296848. Its totient is φ = 554400.

The previous prime is 1663223. The next prime is 1663267. The reversal of 1663248 is 8423661.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 1 + 6² + 6⁴ + 3¹³ + 2¹¹ + 4⁸ + 8 .

It is a zygodrome in base 15.

It is an unprimeable 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 in 3 ways as a sum of consecutive naturals, for example, 17278 + ... + 17373.

2^1663248 is an apocalyptic number.

It is an amenable number.

1663248 is an abundant number, since it is smaller than the sum of its proper divisors (2633600).

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

1663248 is a wasteful number, since it uses less digits than its factorization.

1663248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34662 (or 34656 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1663248 is about 1289.6697251622. The cubic root of 1663248 is about 118.4819891087.

The spelling of 1663248 in words is "one million, six hundred sixty-three thousand, two hundred forty-eight".