68317688 has 32 divisors (see below), whose sum is σ = 132107760. Its totient is φ = 33096960.

The previous prime is 68317663. The next prime is 68317723. The reversal of 68317688 is 88671386.

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, 130868 + ... + 131388.

Almost surely, 2^68317688 is an apocalyptic number.

It is an amenable number.

68317688 is a deficient number, since it is larger than the sum of its proper divisors (63790072).

68317688 is a wasteful number, since it uses less digits than its factorization.

68317688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 1003 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 68317688 is about 8265.4514698230. The cubic root of 68317688 is about 408.8001566323.

The spelling of 68317688 in words is "sixty-eight million, three hundred seventeen thousand, six hundred eighty-eight".