11653643 has 2 divisors, whose sum is σ = 11653644. Its totient is φ = 11653642.

The previous prime is 11653633. The next prime is 11653651. The reversal of 11653643 is 34635611.

It is a happy number.

11653643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11653643 - 2⁴ = 11653627 is a prime.

It is not a weakly prime, because it can be changed into another prime (11653633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5826821 + 5826822.

It is an arithmetic number, because the mean of its divisors is an integer number (5826822).

Almost surely, 2^11653643 is an apocalyptic number.

11653643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11653643 is an equidigital number, since it uses as much as digits as its factorization.

11653643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 11653643 is about 3413.7432533804. The cubic root of 11653643 is about 226.7186446061.

The spelling of 11653643 in words is "eleven million, six hundred fifty-three thousand, six hundred forty-three".