10666729 has 2 divisors, whose sum is σ = 10666730. Its totient is φ = 10666728.

The previous prime is 10666717. The next prime is 10666741. The reversal of 10666729 is 92766601.

It is a balanced prime because it is at equal distance from previous prime (10666717) and next prime (10666741).

It can be written as a sum of positive squares in only one way, i.e., 7551504 + 3115225 = 2748^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 10666729 - 2¹³ = 10658537 is a prime.

It is a super-2 number, since 2×10666729² = 227558215118882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10666129) 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, 5333364 + 5333365.

It is an arithmetic number, because the mean of its divisors is an integer number (5333365).

Almost surely, 2^10666729 is an apocalyptic number.

It is an amenable number.

10666729 is a deficient number, since it is larger than the sum of its proper divisors (1).

10666729 is an equidigital number, since it uses as much as digits as its factorization.

10666729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 10666729 is about 3265.9958665008. The cubic root of 10666729 is about 220.1289120507.

The spelling of 10666729 in words is "ten million, six hundred sixty-six thousand, seven hundred twenty-nine".