68053986 has 128 divisors (see below), whose sum is σ = 203212800. Its totient is φ = 16303680.

The previous prime is 68053969. The next prime is 68054011. The reversal of 68053986 is 68935086.

It is an unprimeable number.

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, 53425 + ... + 54683.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^68053986 is an apocalyptic number.

68053986 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68053986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101606400).

68053986 is an abundant number, since it is smaller than the sum of its proper divisors (135158814).

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

68053986 is a wasteful number, since it uses less digits than its factorization.

68053986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 68053986 is about 8249.4839838623. The cubic root of 68053986 is about 408.2734974195.

It can be divided in two parts, 680539 and 86, that added together give a square (680625 = 825²).

The spelling of 68053986 in words is "sixty-eight million, fifty-three thousand, nine hundred eighty-six".