68083857 has 12 divisors (see below), whose sum is σ = 98694544. Its totient is φ = 45227160.

The previous prime is 68083849. The next prime is 68083867. The reversal of 68083857 is 75838086.

It is not a de Polignac number, because 68083857 - 2³ = 68083849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68083837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10819 + ... + 15912.

Almost surely, 2^68083857 is an apocalyptic number.

It is an amenable number.

68083857 is a deficient number, since it is larger than the sum of its proper divisors (30610687).

68083857 is a wasteful number, since it uses less digits than its factorization.

68083857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27020 (or 27017 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 68083857 is about 8251.2942621143. The cubic root of 68083857 is about 408.3332233051. Note that the first 3 decimals are identical.

The spelling of 68083857 in words is "sixty-eight million, eighty-three thousand, eight hundred fifty-seven".