68888998 has 16 divisors (see below), whose sum is σ = 111048624.
Its totient is φ = 31933440.
The previous prime is 68888977. The next prime is 68888999. The reversal of 68888998 is 89988886.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68888999) 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, 12843 + ... + 17398.
It is an arithmetic number, because the mean of its divisors is an integer number (6940539).
Almost surely, 268888998 is an apocalyptic number.
68888998 is a deficient number, since it is larger than the sum of its proper divisors (42159626).
68888998 is a wasteful number, since it uses less digits than its factorization.
68888998 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30327.
The product of its digits is 15925248, while the sum is 64.
The square root of 68888998 is about 8299.9396383347.
The cubic root of 68888998 is about 409.9365319167.
The spelling of 68888998 in words is "sixty-eight million, eight hundred eighty-eight thousand, nine hundred ninety-eight".