68286855 has 64 divisors (see below), whose sum is σ = 141603840. Its totient is φ = 27288576.

The previous prime is 68286847. The next prime is 68286857. The reversal of 68286855 is 55868286.

It is not a de Polignac number, because 68286855 - 2³ = 68286847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68286857) 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 63 ways as a sum of consecutive naturals, for example, 24619 + ... + 27251.

It is an arithmetic number, because the mean of its divisors is an integer number (2212560).

Almost surely, 2^68286855 is an apocalyptic number.

68286855 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68286855 is an abundant number, since it is smaller than the sum of its proper divisors (73316985).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68286855 is a wasteful number, since it uses less digits than its factorization.

68286855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its digits is 921600, while the sum is 48.

The square root of 68286855 is about 8263.5860859557. The cubic root of 68286855 is about 408.7386477596.

The spelling of 68286855 in words is "sixty-eight million, two hundred eighty-six thousand, eight hundred fifty-five".