68057929 has 2 divisors, whose sum is σ = 68057930. Its totient is φ = 68057928.

The previous prime is 68057923. The next prime is 68057933. The reversal of 68057929 is 92975086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42575625 + 25482304 = 6525^2 + 5048^2 .

It is a cyclic number.

It is not a de Polignac number, because 68057929 - 2³ = 68057921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68057921) 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, 34028964 + 34028965.

It is an arithmetic number, because the mean of its divisors is an integer number (34028965).

Almost surely, 2^68057929 is an apocalyptic number.

It is an amenable number.

68057929 is a deficient number, since it is larger than the sum of its proper divisors (1).

68057929 is an equidigital number, since it uses as much as digits as its factorization.

68057929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 68057929 is about 8249.7229650456. The cubic root of 68057929 is about 408.2813822935.

It can be divided in two parts, 68057 and 929, that added together give a palindrome (68986).

The spelling of 68057929 in words is "sixty-eight million, fifty-seven thousand, nine hundred twenty-nine".