68824978 has 16 divisors (see below), whose sum is σ = 106089984. Its totient is φ = 33467040.

The previous prime is 68824961. The next prime is 68824979. The reversal of 68824978 is 87942886.

It is not an unprimeable number, because it can be changed into a prime (68824979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28951 + ... + 31237.

It is an arithmetic number, because the mean of its divisors is an integer number (6630624).

Almost surely, 2^68824978 is an apocalyptic number.

68824978 is a deficient number, since it is larger than the sum of its proper divisors (37265006).

68824978 is a wasteful number, since it uses less digits than its factorization.

68824978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697.

The product of its digits is 1548288, while the sum is 52.

The square root of 68824978 is about 8296.0820873470. The cubic root of 68824978 is about 409.8095050015.

The spelling of 68824978 in words is "sixty-eight million, eight hundred twenty-four thousand, nine hundred seventy-eight".