68729597 has 2 divisors, whose sum is σ = 68729598. Its totient is φ = 68729596.

The previous prime is 68729581. The next prime is 68729599. The reversal of 68729597 is 79592786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53158681 + 15570916 = 7291^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 68729597 - 2⁴ = 68729581 is a prime.

Together with 68729599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68729599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34364798 + 34364799.

It is an arithmetic number, because the mean of its divisors is an integer number (34364799).

Almost surely, 2^68729597 is an apocalyptic number.

It is an amenable number.

68729597 is a deficient number, since it is larger than the sum of its proper divisors (1).

68729597 is an equidigital number, since it uses as much as digits as its factorization.

68729597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 68729597 is about 8290.3315373995. The cubic root of 68729597 is about 409.6201061711.

The spelling of 68729597 in words is "sixty-eight million, seven hundred twenty-nine thousand, five hundred ninety-seven".