11648641 has 2 divisors, whose sum is σ = 11648642. Its totient is φ = 11648640.

The previous prime is 11648597. The next prime is 11648713. The reversal of 11648641 is 14684611.

11648641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10890000 + 758641 = 3300^2 + 871^2 .

It is an emirp because it is prime and its reverse (14684611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11648641 - 2⁷ = 11648513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11648041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5824320 + 5824321.

It is an arithmetic number, because the mean of its divisors is an integer number (5824321).

Almost surely, 2^11648641 is an apocalyptic number.

It is an amenable number.

11648641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11648641 is an equidigital number, since it uses as much as digits as its factorization.

11648641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 11648641 is about 3413.0105478888. The cubic root of 11648641 is about 226.6862024204.

The spelling of 11648641 in words is "eleven million, six hundred forty-eight thousand, six hundred forty-one".