68842087 has 2 divisors, whose sum is σ = 68842088. Its totient is φ = 68842086.

The previous prime is 68842057. The next prime is 68842117. The reversal of 68842087 is 78024886.

It is a balanced prime because it is at equal distance from previous prime (68842057) and next prime (68842117).

It is a cyclic number.

It is not a de Polignac number, because 68842087 - 2¹¹ = 68840039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68842057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34421043 + 34421044.

It is an arithmetic number, because the mean of its divisors is an integer number (34421044).

Almost surely, 2^68842087 is an apocalyptic number.

68842087 is a deficient number, since it is larger than the sum of its proper divisors (1).

68842087 is an equidigital number, since it uses as much as digits as its factorization.

68842087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 68842087 is about 8297.1131726643. The cubic root of 68842087 is about 409.8434599702.

The spelling of 68842087 in words is "sixty-eight million, eight hundred forty-two thousand, eighty-seven".