6858985 has 8 divisors (see below), whose sum is σ = 9406656. Its totient is φ = 4703280.

The previous prime is 6858983. The next prime is 6858989. The reversal of 6858985 is 5898586.

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

It is not a de Polignac number, because 6858985 - 2¹ = 6858983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6858983) 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 7 ways as a sum of consecutive naturals, for example, 97951 + ... + 98020.

It is an arithmetic number, because the mean of its divisors is an integer number (1175832).

Almost surely, 2^6858985 is an apocalyptic number.

It is an amenable number.

6858985 is a deficient number, since it is larger than the sum of its proper divisors (2547671).

6858985 is a wasteful number, since it uses less digits than its factorization.

6858985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195983.

The product of its digits is 691200, while the sum is 49.

The square root of 6858985 is about 2618.9663991735. The cubic root of 6858985 is about 189.9998614957. Note that the first 3 decimals are identical.

The spelling of 6858985 in words is "six million, eight hundred fifty-eight thousand, nine hundred eighty-five".