68491108 has 24 divisors (see below), whose sum is σ = 138200832. Its totient is φ = 29092224.

The previous prime is 68491091. The next prime is 68491117. The reversal of 68491108 is 80119486.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 7660 + ... + 13987.

It is an arithmetic number, because the mean of its divisors is an integer number (5758368).

Almost surely, 2^68491108 is an apocalyptic number.

It is an amenable number.

68491108 is an abundant number, since it is smaller than the sum of its proper divisors (69709724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68491108 is a wasteful number, since it uses less digits than its factorization.

68491108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21771 (or 21769 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 68491108 is about 8275.9354758239. The cubic root of 68491108 is about 409.1457685472.

The spelling of 68491108 in words is "sixty-eight million, four hundred ninety-one thousand, one hundred eight".