11643648 has 36 divisors (see below), whose sum is σ = 30991128. Its totient is φ = 3880960.

The previous prime is 11643629. The next prime is 11643659. The reversal of 11643648 is 84634611.

It is a Smith number, since the sum of its digits (33) 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813 + ... + 8348.

Almost surely, 2^11643648 is an apocalyptic number.

It is an amenable number.

11643648 is an abundant number, since it is smaller than the sum of its proper divisors (19347480).

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

11643648 is an equidigital number, since it uses as much as digits as its factorization.

11643648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15180 (or 15166 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 11643648 is about 3412.2790038331. The cubic root of 11643648 is about 226.6538093438.

The spelling of 11643648 in words is "eleven million, six hundred forty-three thousand, six hundred forty-eight".