3185985 has 16 divisors (see below), whose sum is σ = 5561280. Its totient is φ = 1544640.

The previous prime is 3185981. The next prime is 3186013. The reversal of 3185985 is 5895813.

It is not a de Polignac number, because 3185985 - 2² = 3185981 is a prime.

3185985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3185981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9490 + ... + 9819.

It is an arithmetic number, because the mean of its divisors is an integer number (347580).

Almost surely, 2^3185985 is an apocalyptic number.

It is an amenable number.

3185985 is a deficient number, since it is larger than the sum of its proper divisors (2375295).

3185985 is a wasteful number, since it uses less digits than its factorization.

3185985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19328.

The product of its digits is 43200, while the sum is 39.

The square root of 3185985 is about 1784.9327718432. The cubic root of 3185985 is about 147.1458130194.

The spelling of 3185985 in words is "three million, one hundred eighty-five thousand, nine hundred eighty-five".