68278884 has 24 divisors (see below), whose sum is σ = 159583200. Its totient is φ = 22721664.

The previous prime is 68278879. The next prime is 68278897. The reversal of 68278884 is 48887286.

It is a super-3 number, since 3×68278884³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3292 + ... + 12140.

It is an arithmetic number, because the mean of its divisors is an integer number (6649300).

Almost surely, 2^68278884 is an apocalyptic number.

It is an amenable number.

68278884 is an abundant number, since it is smaller than the sum of its proper divisors (91304316).

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

68278884 is a wasteful number, since it uses less digits than its factorization.

68278884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9499 (or 9497 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 51.

The square root of 68278884 is about 8263.1037752167. The cubic root of 68278884 is about 408.7227433685.

The spelling of 68278884 in words is "sixty-eight million, two hundred seventy-eight thousand, eight hundred eighty-four".