68752857 has 8 divisors (see below), whose sum is σ = 91902976. Its totient is φ = 45718992.

The previous prime is 68752843. The next prime is 68752883. The reversal of 68752857 is 75825786.

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

It is not a de Polignac number, because 68752857 - 2⁴ = 68752841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68752807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27673 + ... + 30054.

It is an arithmetic number, because the mean of its divisors is an integer number (11487872).

Almost surely, 2^68752857 is an apocalyptic number.

It is an amenable number.

68752857 is a deficient number, since it is larger than the sum of its proper divisors (23150119).

68752857 is a wasteful number, since it uses less digits than its factorization.

68752857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58127.

The product of its digits is 940800, while the sum is 48.

The square root of 68752857 is about 8291.7342576810. The cubic root of 68752857 is about 409.6663098905. Note that the first 3 decimals are identical.

The spelling of 68752857 in words is "sixty-eight million, seven hundred fifty-two thousand, eight hundred fifty-seven".