68447707 has 2 divisors, whose sum is σ = 68447708. Its totient is φ = 68447706.

The previous prime is 68447699. The next prime is 68447713. The reversal of 68447707 is 70774486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68447707 - 2³ = 68447699 is a prime.

It is not a weakly prime, because it can be changed into another prime (68447207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34223853 + 34223854.

It is an arithmetic number, because the mean of its divisors is an integer number (34223854).

Almost surely, 2^68447707 is an apocalyptic number.

68447707 is a deficient number, since it is larger than the sum of its proper divisors (1).

68447707 is an equidigital number, since it uses as much as digits as its factorization.

68447707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 68447707 is about 8273.3129398083. The cubic root of 68447707 is about 409.0593286763.

The spelling of 68447707 in words is "sixty-eight million, four hundred forty-seven thousand, seven hundred seven".