3287856 has 80 divisors (see below), whose sum is σ = 9999360. Its totient is φ = 917760.

The previous prime is 3287833. The next prime is 3287861. The reversal of 3287856 is 6587823.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6625 + ... + 7103.

It is an arithmetic number, because the mean of its divisors is an integer number (124992).

Almost surely, 2^3287856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3287856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4999680).

3287856 is an abundant number, since it is smaller than the sum of its proper divisors (6711504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3287856 is a wasteful number, since it uses less digits than its factorization.

3287856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 3287856 is about 1813.2446056724. The cubic root of 3287856 is about 148.6977039995.

The spelling of 3287856 in words is "three million, two hundred eighty-seven thousand, eight hundred fifty-six".