68422279 has 2 divisors, whose sum is σ = 68422280. Its totient is φ = 68422278.

The previous prime is 68422267. The next prime is 68422283. The reversal of 68422279 is 97222486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68422279 - 2⁵ = 68422247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68422219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34211139 + 34211140.

It is an arithmetic number, because the mean of its divisors is an integer number (34211140).

Almost surely, 2^68422279 is an apocalyptic number.

68422279 is a deficient number, since it is larger than the sum of its proper divisors (1).

68422279 is an equidigital number, since it uses as much as digits as its factorization.

68422279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 68422279 is about 8271.7760487092. The cubic root of 68422279 is about 409.0086678659.

The spelling of 68422279 in words is "sixty-eight million, four hundred twenty-two thousand, two hundred seventy-nine".