11668729 has 2 divisors, whose sum is σ = 11668730. Its totient is φ = 11668728.

The previous prime is 11668703. The next prime is 11668753. The reversal of 11668729 is 92786611.

11668729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11377129 + 291600 = 3373^2 + 540^2 .

It is a cyclic number.

It is not a de Polignac number, because 11668729 - 2¹⁷ = 11537657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11668691 and 11668700.

It is not a weakly prime, because it can be changed into another prime (11668229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5834364 + 5834365.

It is an arithmetic number, because the mean of its divisors is an integer number (5834365).

Almost surely, 2^11668729 is an apocalyptic number.

It is an amenable number.

11668729 is a deficient number, since it is larger than the sum of its proper divisors (1).

11668729 is an equidigital number, since it uses as much as digits as its factorization.

11668729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 11668729 is about 3415.9521366670. The cubic root of 11668729 is about 226.8164338453.

The spelling of 11668729 in words is "eleven million, six hundred sixty-eight thousand, seven hundred twenty-nine".