68286889 has 16 divisors (see below), whose sum is σ = 76032000. Its totient is φ = 60811920.

The previous prime is 68286859. The next prime is 68286899. The reversal of 68286889 is 98868286.

It is a cyclic number.

It is not a de Polignac number, because 68286889 - 2⁵ = 68286857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68286859) 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 in 15 ways as a sum of consecutive naturals, for example, 155332 + ... + 155770.

It is an arithmetic number, because the mean of its divisors is an integer number (4752000).

Almost surely, 2^68286889 is an apocalyptic number.

It is an amenable number.

68286889 is a deficient number, since it is larger than the sum of its proper divisors (7745111).

68286889 is a wasteful number, since it uses less digits than its factorization.

68286889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its digits is 2654208, while the sum is 55.

The square root of 68286889 is about 8263.5881431736. The cubic root of 68286889 is about 408.7387155965.

It can be divided in two parts, 682 and 86889, that added together give a triangular number (87571 = T₄₁₈).

The spelling of 68286889 in words is "sixty-eight million, two hundred eighty-six thousand, eight hundred eighty-nine".