68888028 has 24 divisors (see below), whose sum is σ = 175351680. Its totient is φ = 20875120.

The previous prime is 68888011. The next prime is 68888087. The reversal of 68888028 is 82088886.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 260808 + ... + 261071.

It is an arithmetic number, because the mean of its divisors is an integer number (7306320).

Almost surely, 2^68888028 is an apocalyptic number.

It is an amenable number.

68888028 is an abundant number, since it is smaller than the sum of its proper divisors (106463652).

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

68888028 is a wasteful number, since it uses less digits than its factorization.

68888028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521897 (or 521895 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 48.

The square root of 68888028 is about 8299.8812039691. The cubic root of 68888028 is about 409.9346078537.

The spelling of 68888028 in words is "sixty-eight million, eight hundred eighty-eight thousand, twenty-eight".