68426629 has 2 divisors, whose sum is σ = 68426630. Its totient is φ = 68426628.

The previous prime is 68426609. The next prime is 68426681. The reversal of 68426629 is 92662486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37234404 + 31192225 = 6102^2 + 5585^2 .

It is a cyclic number.

It is not a de Polignac number, because 68426629 - 2⁵ = 68426597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68426609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34213314 + 34213315.

It is an arithmetic number, because the mean of its divisors is an integer number (34213315).

Almost surely, 2^68426629 is an apocalyptic number.

It is an amenable number.

68426629 is a deficient number, since it is larger than the sum of its proper divisors (1).

68426629 is an equidigital number, since it uses as much as digits as its factorization.

68426629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The square root of 68426629 is about 8272.0389868520. The cubic root of 68426629 is about 409.0173353644.

The spelling of 68426629 in words is "sixty-eight million, four hundred twenty-six thousand, six hundred twenty-nine".