68888873 has 2 divisors, whose sum is σ = 68888874. Its totient is φ = 68888872.

The previous prime is 68888867. The next prime is 68888893. The reversal of 68888873 is 37888886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52591504 + 16297369 = 7252^2 + 4037^2 .

It is a cyclic number.

It is not a de Polignac number, because 68888873 - 2²² = 64694569 is a prime.

It is not a weakly prime, because it can be changed into another prime (68888803) 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, 34444436 + 34444437.

It is an arithmetic number, because the mean of its divisors is an integer number (34444437).

Almost surely, 2^68888873 is an apocalyptic number.

It is an amenable number.

68888873 is a deficient number, since it is larger than the sum of its proper divisors (1).

68888873 is an equidigital number, since it uses as much as digits as its factorization.

68888873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4128768, while the sum is 56.

The square root of 68888873 is about 8299.9321081561. The cubic root of 68888873 is about 409.9362839714.

The spelling of 68888873 in words is "sixty-eight million, eight hundred eighty-eight thousand, eight hundred seventy-three".