68399998 has 16 divisors (see below), whose sum is σ = 106317360. Its totient is φ = 32982976.

The previous prime is 68399983. The next prime is 68400001. The reversal of 68399998 is 89999386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786 + ... + 11722.

It is an arithmetic number, because the mean of its divisors is an integer number (6644835).

Almost surely, 2^68399998 is an apocalyptic number.

68399998 is a deficient number, since it is larger than the sum of its proper divisors (37917362).

68399998 is a wasteful number, since it uses less digits than its factorization.

68399998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051.

The product of its digits is 7558272, while the sum is 61.

The square root of 68399998 is about 8270.4291303414. The cubic root of 68399998 is about 408.9642665800.

The spelling of 68399998 in words is "sixty-eight million, three hundred ninety-nine thousand, nine hundred ninety-eight".