68584857 has 12 divisors (see below), whose sum is σ = 100516080. Its totient is φ = 41566360.

The previous prime is 68584847. The next prime is 68584903. The reversal of 68584857 is 75848586.

It is not a de Polignac number, because 68584857 - 2¹² = 68580761 is a prime.

It is a super-3 number, since 3×68584857³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68584837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94107 + ... + 94832.

It is an arithmetic number, because the mean of its divisors is an integer number (8376340).

Almost surely, 2^68584857 is an apocalyptic number.

It is an amenable number.

68584857 is a deficient number, since it is larger than the sum of its proper divisors (31931223).

68584857 is a wasteful number, since it uses less digits than its factorization.

68584857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188964 (or 188953 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 51.

The square root of 68584857 is about 8281.5974908226. The cubic root of 68584857 is about 409.3323597722.

The spelling of 68584857 in words is "sixty-eight million, five hundred eighty-four thousand, eight hundred fifty-seven".