68684856 has 16 divisors (see below), whose sum is σ = 171712200. Its totient is φ = 22894944.

The previous prime is 68684821. The next prime is 68684857. The reversal of 68684856 is 65848686.

It is a junction number, because it is equal to n+sod(n) for n = 68684799 and 68684808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68684857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430911 + ... + 1430958.

Almost surely, 2^68684856 is an apocalyptic number.

It is an amenable number.

68684856 is an abundant number, since it is smaller than the sum of its proper divisors (103027344).

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

68684856 is a wasteful number, since it uses less digits than its factorization.

68684856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861878 (or 2861874 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 68684856 is about 8287.6327138695. The cubic root of 68684856 is about 409.5312032231.

The spelling of 68684856 in words is "sixty-eight million, six hundred eighty-four thousand, eight hundred fifty-six".