1663296 has 28 divisors (see below), whose sum is σ = 4401312. Its totient is φ = 554368.

The previous prime is 1663289. The next prime is 1663301. The reversal of 1663296 is 6923661.

It is a happy number.

It is a zygodrome in base 15.

It is a congruent number.

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, 4140 + ... + 4523.

2^1663296 is an apocalyptic number.

1663296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1663296 is an abundant number, since it is smaller than the sum of its proper divisors (2738016).

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

1663296 is an equidigital number, since it uses as much as digits as its factorization.

1663296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8678 (or 8668 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 1663296 is about 1289.6883344436. The cubic root of 1663296 is about 118.4831288627.

The spelling of 1663296 in words is "one million, six hundred sixty-three thousand, two hundred ninety-six".