68889059 has 2 divisors, whose sum is σ = 68889060.
Its totient is φ = 68889058.
The previous prime is 68889031. The next prime is 68889077. The reversal of 68889059 is 95098886.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68889059 - 28 = 68888803 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68889059.
It is not a weakly prime, because it can be changed into another prime (68889019) 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, 34444529 + 34444530.
It is an arithmetic number, because the mean of its divisors is an integer number (34444530).
Almost surely, 268889059 is an apocalyptic number.
68889059 is a deficient number, since it is larger than the sum of its proper divisors (1).
68889059 is an equidigital number, since it uses as much as digits as its factorization.
68889059 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1244160, while the sum is 53.
The square root of 68889059 is about 8299.9433130594.
The cubic root of 68889059 is about 409.9366529138.
The spelling of 68889059 in words is "sixty-eight million, eight hundred eighty-nine thousand, fifty-nine".