68669269 has 2 divisors, whose sum is σ = 68669270. Its totient is φ = 68669268.

The previous prime is 68669267. The next prime is 68669297. The reversal of 68669269 is 96296686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61308900 + 7360369 = 7830^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 68669269 - 2¹ = 68669267 is a prime.

It is a super-2 number, since 2×68669269² = 9430937009988722, which contains 22 as substring.

Together with 68669267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68669267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34334634 + 34334635.

It is an arithmetic number, because the mean of its divisors is an integer number (34334635).

Almost surely, 2^68669269 is an apocalyptic number.

It is an amenable number.

68669269 is a deficient number, since it is larger than the sum of its proper divisors (1).

68669269 is an equidigital number, since it uses as much as digits as its factorization.

68669269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 52.

The square root of 68669269 is about 8286.6922834144. The cubic root of 68669269 is about 409.5002218872.

The spelling of 68669269 in words is "sixty-eight million, six hundred sixty-nine thousand, two hundred sixty-nine".