6205985 has 4 divisors (see below), whose sum is σ = 7447188. Its totient is φ = 4964784.

The previous prime is 6205967. The next prime is 6206017. The reversal of 6205985 is 5895026.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3139984 + 3066001 = 1772^2 + 1751^2 .

It is a cyclic number.

It is not a de Polignac number, because 6205985 - 2¹⁸ = 5943841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 620594 + ... + 620603.

It is an arithmetic number, because the mean of its divisors is an integer number (1861797).

Almost surely, 2^6205985 is an apocalyptic number.

It is an amenable number.

6205985 is a deficient number, since it is larger than the sum of its proper divisors (1241203).

6205985 is a wasteful number, since it uses less digits than its factorization.

6205985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241202.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 6205985 is about 2491.1814466233. The cubic root of 6205985 is about 183.7681488237.

The spelling of 6205985 in words is "six million, two hundred five thousand, nine hundred eighty-five".