3287985 has 16 divisors (see below), whose sum is σ = 5311680. Its totient is φ = 1736640.

The previous prime is 3287959. The next prime is 3287989. The reversal of 3287985 is 5897823.

3287985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3287985 - 2¹⁴ = 3271601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3287989) 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 15 ways as a sum of consecutive naturals, for example, 630 + ... + 2640.

It is an arithmetic number, because the mean of its divisors is an integer number (331980).

Almost surely, 2^3287985 is an apocalyptic number.

It is an amenable number.

3287985 is a deficient number, since it is larger than the sum of its proper divisors (2023695).

3287985 is a wasteful number, since it uses less digits than its factorization.

3287985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128.

The product of its digits is 120960, while the sum is 42.

The square root of 3287985 is about 1813.2801769170. The cubic root of 3287985 is about 148.6996487069.

It can be divided in two parts, 3 and 287985, that multiplied together give a triangular number (863955 = T₁₃₁₄).

The spelling of 3287985 in words is "three million, two hundred eighty-seven thousand, nine hundred eighty-five".