4851985 has 8 divisors (see below), whose sum is σ = 5841000. Its totient is φ = 3869184.

The previous prime is 4851971. The next prime is 4851989. The reversal of 4851985 is 5891584.

It can be written as a sum of positive squares in 4 ways, for example, as 16384 + 4835601 = 128^2 + 2199^2 .

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 4851985 - 2¹⁷ = 4720913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4851989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391 + ... + 3139.

It is an arithmetic number, because the mean of its divisors is an integer number (730125).

Almost surely, 2^4851985 is an apocalyptic number.

It is an amenable number.

4851985 is a deficient number, since it is larger than the sum of its proper divisors (989015).

4851985 is a wasteful number, since it uses less digits than its factorization.

4851985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107.

The product of its digits is 57600, while the sum is 40.

The square root of 4851985 is about 2202.7221794861. The cubic root of 4851985 is about 169.2933178674.

The spelling of 4851985 in words is "four million, eight hundred fifty-one thousand, nine hundred eighty-five".