68390008 has 32 divisors (see below), whose sum is σ = 130959360. Its totient is φ = 33475680.

The previous prime is 68389943. The next prime is 68390011. The reversal of 68390008 is 80009386.

It is a congruent 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, 83923 + ... + 84733.

It is an arithmetic number, because the mean of its divisors is an integer number (4092480).

Almost surely, 2^68390008 is an apocalyptic number.

It is an amenable number.

68390008 is a deficient number, since it is larger than the sum of its proper divisors (62569352).

68390008 is a wasteful number, since it uses less digits than its factorization.

68390008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 68390008 is about 8269.8251493003. The cubic root of 68390008 is about 408.9443555076.

The spelling of 68390008 in words is "sixty-eight million, three hundred ninety thousand, eight".