68313857 has 8 divisors (see below), whose sum is σ = 69439680. Its totient is φ = 67192720.

The previous prime is 68313853. The next prime is 68313881. The reversal of 68313857 is 75831386.

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

It is a cyclic number.

It is not a de Polignac number, because 68313857 - 2² = 68313853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68313851) 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, 39119 + ... + 40827.

It is an arithmetic number, because the mean of its divisors is an integer number (8679960).

Almost surely, 2^68313857 is an apocalyptic number.

It is an amenable number.

68313857 is a deficient number, since it is larger than the sum of its proper divisors (1125823).

68313857 is a wasteful number, since it uses less digits than its factorization.

68313857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343.

The product of its digits is 120960, while the sum is 41.

The square root of 68313857 is about 8265.2197187976. The cubic root of 68313857 is about 408.7925151624.

The spelling of 68313857 in words is "sixty-eight million, three hundred thirteen thousand, eight hundred fifty-seven".