68762728 has 16 divisors (see below), whose sum is σ = 129276000. Its totient is φ = 34289136.

The previous prime is 68762711. The next prime is 68762731. The reversal of 68762728 is 82726786.

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 3 ways as a sum of consecutive naturals, for example, 8308 + ... + 14371.

It is an arithmetic number, because the mean of its divisors is an integer number (8079750).

Almost surely, 2^68762728 is an apocalyptic number.

It is an amenable number.

68762728 is a deficient number, since it is larger than the sum of its proper divisors (60513272).

68762728 is a wasteful number, since it uses less digits than its factorization.

68762728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23064 (or 23060 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 68762728 is about 8292.3294676466. The cubic root of 68762728 is about 409.6859145189.

It can be divided in two parts, 6876 and 2728, that added together give a square (9604 = 98²).

The spelling of 68762728 in words is "sixty-eight million, seven hundred sixty-two thousand, seven hundred twenty-eight".