68698686 has 24 divisors (see below), whose sum is σ = 159830280. Its totient is φ = 19628112.

The previous prime is 68698673. The next prime is 68698691. The reversal of 68698686 is 68689686.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116541 + ... + 117128.

It is an arithmetic number, because the mean of its divisors is an integer number (6659595).

Almost surely, 2^68698686 is an apocalyptic number.

68698686 is an abundant number, since it is smaller than the sum of its proper divisors (91131594).

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

68698686 is a wasteful number, since it uses less digits than its factorization.

68698686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233688 (or 233681 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 57.

The square root of 68698686 is about 8288.4670476512. The cubic root of 68698686 is about 409.5586883524.

The spelling of 68698686 in words is "sixty-eight million, six hundred ninety-eight thousand, six hundred eighty-six".