68342429 has 2 divisors, whose sum is σ = 68342430. Its totient is φ = 68342428.

The previous prime is 68342401. The next prime is 68342459. The reversal of 68342429 is 92424386.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67980025 + 362404 = 8245^2 + 602^2 .

It is a cyclic number.

It is not a de Polignac number, because 68342429 - 2⁸ = 68342173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68342392 and 68342401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68342459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34171214 + 34171215.

It is an arithmetic number, because the mean of its divisors is an integer number (34171215).

Almost surely, 2^68342429 is an apocalyptic number.

It is an amenable number.

68342429 is a deficient number, since it is larger than the sum of its proper divisors (1).

68342429 is an equidigital number, since it uses as much as digits as its factorization.

68342429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The square root of 68342429 is about 8266.9479858047. The cubic root of 68342429 is about 408.8494991686.

The spelling of 68342429 in words is "sixty-eight million, three hundred forty-two thousand, four hundred twenty-nine".