68707229 has 2 divisors, whose sum is σ = 68707230. Its totient is φ = 68707228.

The previous prime is 68707213. The next prime is 68707237. The reversal of 68707229 is 92270786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57350329 + 11356900 = 7573^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 68707229 - 2⁴ = 68707213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68706229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34353614 + 34353615.

It is an arithmetic number, because the mean of its divisors is an integer number (34353615).

Almost surely, 2^68707229 is an apocalyptic number.

It is an amenable number.

68707229 is a deficient number, since it is larger than the sum of its proper divisors (1).

68707229 is an equidigital number, since it uses as much as digits as its factorization.

68707229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 68707229 is about 8288.9823862764. The cubic root of 68707229 is about 409.5756644891.

The spelling of 68707229 in words is "sixty-eight million, seven hundred seven thousand, two hundred twenty-nine".