11987653 has 2 divisors, whose sum is σ = 11987654. Its totient is φ = 11987652.

The previous prime is 11987641. The next prime is 11987671. The reversal of 11987653 is 35678911.

11987653 is digitally balanced in base 3, 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., 11985444 + 2209 = 3462^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 11987653 - 2⁹ = 11987141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11987453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5993826 + 5993827.

It is an arithmetic number, because the mean of its divisors is an integer number (5993827).

Almost surely, 2^11987653 is an apocalyptic number.

It is an amenable number.

11987653 is a deficient number, since it is larger than the sum of its proper divisors (1).

11987653 is an equidigital number, since it uses as much as digits as its factorization.

11987653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 40.

The square root of 11987653 is about 3462.3190205410. The cubic root of 11987653 is about 228.8643005272.

The spelling of 11987653 in words is "eleven million, nine hundred eighty-seven thousand, six hundred fifty-three".