11648789 has 2 divisors, whose sum is σ = 11648790. Its totient is φ = 11648788.

The previous prime is 11648773. The next prime is 11648869. The reversal of 11648789 is 98784611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8614225 + 3034564 = 2935^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 11648789 - 2⁴ = 11648773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11642789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5824394 + 5824395.

It is an arithmetic number, because the mean of its divisors is an integer number (5824395).

Almost surely, 2^11648789 is an apocalyptic number.

It is an amenable number.

11648789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11648789 is an equidigital number, since it uses as much as digits as its factorization.

11648789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 44.

The square root of 11648789 is about 3413.0322295578. The cubic root of 11648789 is about 226.6871624585.

The spelling of 11648789 in words is "eleven million, six hundred forty-eight thousand, seven hundred eighty-nine".