68094491 has 2 divisors, whose sum is σ = 68094492. Its totient is φ = 68094490.

The previous prime is 68094451. The next prime is 68094539. The reversal of 68094491 is 19449086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68094491 - 2⁶ = 68094427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68094431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34047245 + 34047246.

It is an arithmetic number, because the mean of its divisors is an integer number (34047246).

Almost surely, 2^68094491 is an apocalyptic number.

68094491 is a deficient number, since it is larger than the sum of its proper divisors (1).

68094491 is an equidigital number, since it uses as much as digits as its factorization.

68094491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 68094491 is about 8251.9386207121. The cubic root of 68094491 is about 408.3544813518.

The spelling of 68094491 in words is "sixty-eight million, ninety-four thousand, four hundred ninety-one".