29706689 has 2 divisors, whose sum is σ = 29706690. Its totient is φ = 29706688.

The previous prime is 29706641. The next prime is 29706707. The reversal of 29706689 is 98660792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27040000 + 2666689 = 5200^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 29706689 - 2⁸ = 29706433 is a prime.

It is a super-3 number, since 3×29706689³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (29706619) 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, 14853344 + 14853345.

It is an arithmetic number, because the mean of its divisors is an integer number (14853345).

Almost surely, 2^29706689 is an apocalyptic number.

It is an amenable number.

29706689 is a deficient number, since it is larger than the sum of its proper divisors (1).

29706689 is an equidigital number, since it uses as much as digits as its factorization.

29706689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 29706689 is about 5450.3842983775. The cubic root of 29706689 is about 309.7072817864.

The spelling of 29706689 in words is "twenty-nine million, seven hundred six thousand, six hundred eighty-nine".