69668029 has 2 divisors, whose sum is σ = 69668030. Its totient is φ = 69668028.

The previous prime is 69667999. The next prime is 69668033. The reversal of 69668029 is 92086696.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69305625 + 362404 = 8325^2 + 602^2 .

It is a cyclic number.

It is not a de Polignac number, because 69668029 - 2⁷ = 69667901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69668029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69668069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34834014 + 34834015.

It is an arithmetic number, because the mean of its divisors is an integer number (34834015).

Almost surely, 2^69668029 is an apocalyptic number.

It is an amenable number.

69668029 is a deficient number, since it is larger than the sum of its proper divisors (1).

69668029 is an equidigital number, since it uses as much as digits as its factorization.

69668029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 69668029 is about 8346.7376261627. The cubic root of 69668029 is about 411.4759986926.

The spelling of 69668029 in words is "sixty-nine million, six hundred sixty-eight thousand, twenty-nine".