68549928 has 64 divisors (see below), whose sum is σ = 178176000. Its totient is φ = 21954240.

The previous prime is 68549903. The next prime is 68549941. The reversal of 68549928 is 82994586.

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 15 ways as a sum of consecutive naturals, for example, 147825 + ... + 148287.

It is an arithmetic number, because the mean of its divisors is an integer number (2784000).

Almost surely, 2^68549928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68549928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89088000).

68549928 is an abundant number, since it is smaller than the sum of its proper divisors (109626072).

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

68549928 is a wasteful number, since it uses less digits than its factorization.

68549928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 698 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 68549928 is about 8279.4883899913. The cubic root of 68549928 is about 409.2628595041.

The spelling of 68549928 in words is "sixty-eight million, five hundred forty-nine thousand, nine hundred twenty-eight".