68885293 has 2 divisors, whose sum is σ = 68885294. Its totient is φ = 68885292.

The previous prime is 68885281. The next prime is 68885303. The reversal of 68885293 is 39258886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 15697444 = 7293^2 + 3962^2 .

It is a cyclic number.

It is not a de Polignac number, because 68885293 - 2¹⁷ = 68754221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68885263) 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, 34442646 + 34442647.

It is an arithmetic number, because the mean of its divisors is an integer number (34442647).

Almost surely, 2^68885293 is an apocalyptic number.

It is an amenable number.

68885293 is a deficient number, since it is larger than the sum of its proper divisors (1).

68885293 is an equidigital number, since it uses as much as digits as its factorization.

68885293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The square root of 68885293 is about 8299.7164409394. The cubic root of 68885293 is about 409.9291826924.

The spelling of 68885293 in words is "sixty-eight million, eight hundred eighty-five thousand, two hundred ninety-three".