3285864 has 48 divisors (see below), whose sum is σ = 9097920. Its totient is φ = 1070880.

The previous prime is 3285857. The next prime is 3285889. The reversal of 3285864 is 4685823.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 3 + 2²⁰ + 8² + 5⁹ + 8² + 6⁷ + 4⁶ .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2899 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (189540).

Almost surely, 2^3285864 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 3285864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4548960).

3285864 is an abundant number, since it is smaller than the sum of its proper divisors (5812056).

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

3285864 is a wasteful number, since it uses less digits than its factorization.

3285864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1023 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 3285864 is about 1812.6952308648. The cubic root of 3285864 is about 148.6676676408.

The spelling of 3285864 in words is "three million, two hundred eighty-five thousand, eight hundred sixty-four".