68399104 has 26 divisors (see below), whose sum is σ = 136789700. Its totient is φ = 34197504.

The previous prime is 68399099. The next prime is 68399129. The reversal of 68399104 is 40199386.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4254 + ... + 12445.

Almost surely, 2^68399104 is an apocalyptic number.

68399104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68399104 is a deficient number, since it is larger than the sum of its proper divisors (68390596).

68399104 is an equidigital number, since it uses as much as digits as its factorization.

68399104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16723 (or 16701 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 68399104 is about 8270.3750821834. The cubic root of 68399104 is about 408.9624848273.

The spelling of 68399104 in words is "sixty-eight million, three hundred ninety-nine thousand, one hundred four".