11648771 has 4 divisors (see below), whose sum is σ = 11661672. Its totient is φ = 11635872.

The previous prime is 11648737. The next prime is 11648773. The reversal of 11648771 is 17784611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11648771 - 2¹⁰ = 11647747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11648773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4985 + ... + 6938.

It is an arithmetic number, because the mean of its divisors is an integer number (2915418).

Almost surely, 2^11648771 is an apocalyptic number.

11648771 is a deficient number, since it is larger than the sum of its proper divisors (12901).

11648771 is an equidigital number, since it uses as much as digits as its factorization.

11648771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12900.

The product of its digits is 9408, while the sum is 35.

The square root of 11648771 is about 3413.0295926054. The cubic root of 11648771 is about 226.6870456975.

The spelling of 11648771 in words is "eleven million, six hundred forty-eight thousand, seven hundred seventy-one".