68022791 has 2 divisors, whose sum is σ = 68022792. Its totient is φ = 68022790.

The previous prime is 68022781. The next prime is 68022803. The reversal of 68022791 is 19722086.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68022791 - 2⁶ = 68022727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68022701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34011395 + 34011396.

It is an arithmetic number, because the mean of its divisors is an integer number (34011396).

Almost surely, 2^68022791 is an apocalyptic number.

68022791 is a deficient number, since it is larger than the sum of its proper divisors (1).

68022791 is an equidigital number, since it uses as much as digits as its factorization.

68022791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 68022791 is about 8247.5930428216. The cubic root of 68022791 is about 408.2111055891.

The spelling of 68022791 in words is "sixty-eight million, twenty-two thousand, seven hundred ninety-one".