3265664 has 32 divisors (see below), whose sum is σ = 6723840. Its totient is φ = 1578240.

The previous prime is 3265643. The next prime is 3265667. The reversal of 3265664 is 4665623.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×3265664² = 21329122721792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 3¹¹ + 2¹¹ + 6³ + 5⁷ + 6⁷ + 6⁸ + 4¹⁰ .

It is a self number, because there is not a number n which added to its sum of digits gives 3265664.

It is not an unprimeable number, because it can be changed into a prime (3265667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3557 + ... + 4379.

It is an arithmetic number, because the mean of its divisors is an integer number (210120).

Almost surely, 2^3265664 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 3265664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3361920).

3265664 is an abundant number, since it is smaller than the sum of its proper divisors (3458176).

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

3265664 is an equidigital number, since it uses as much as digits as its factorization.

3265664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 856 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 3265664 is about 1807.1148275635. The cubic root of 3265664 is about 148.3623941154.

The spelling of 3265664 in words is "three million, two hundred sixty-five thousand, six hundred sixty-four".