68606857 has 8 divisors (see below), whose sum is σ = 76256640. Its totient is φ = 61192560.

The previous prime is 68606851. The next prime is 68606873. The reversal of 68606857 is 75860686.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-68606857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68606851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58257 + ... + 59422.

It is an arithmetic number, because the mean of its divisors is an integer number (9532080).

Almost surely, 2^68606857 is an apocalyptic number.

It is an amenable number.

68606857 is a deficient number, since it is larger than the sum of its proper divisors (7649783).

68606857 is a wasteful number, since it uses less digits than its factorization.

68606857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117743.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 68606857 is about 8282.9256304762. The cubic root of 68606857 is about 409.3761223441.

The spelling of 68606857 in words is "sixty-eight million, six hundred six thousand, eight hundred fifty-seven".