68663706 has 16 divisors (see below), whose sum is σ = 142063200. Its totient is φ = 22098608.

The previous prime is 68663689. The next prime is 68663711. The reversal of 68663706 is 60736686.

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, 197136 + ... + 197483.

It is an arithmetic number, because the mean of its divisors is an integer number (8878950).

Almost surely, 2^68663706 is an apocalyptic number.

68663706 is an abundant number, since it is smaller than the sum of its proper divisors (73399494).

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

68663706 is a wasteful number, since it uses less digits than its factorization.

68663706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394653.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 68663706 is about 8286.3566179594. The cubic root of 68663706 is about 409.4891635138.

The spelling of 68663706 in words is "sixty-eight million, six hundred sixty-three thousand, seven hundred six".