68287688 has 32 divisors (see below), whose sum is σ = 146602560. Its totient is φ = 29211840.

The previous prime is 68287633. The next prime is 68287693. The reversal of 68287688 is 88678286.

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, 48758 + ... + 50138.

It is an arithmetic number, because the mean of its divisors is an integer number (4581330).

Almost surely, 2^68287688 is an apocalyptic number.

It is an amenable number.

68287688 is an abundant number, since it is smaller than the sum of its proper divisors (78314872).

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

68287688 is a wasteful number, since it uses less digits than its factorization.

68287688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277 (or 2273 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 53.

The square root of 68287688 is about 8263.6364876488. The cubic root of 68287688 is about 408.7403097579.

The spelling of 68287688 in words is "sixty-eight million, two hundred eighty-seven thousand, six hundred eighty-eight".