3309664 has 24 divisors (see below), whose sum is σ = 6630120. Its totient is φ = 1625856.

The previous prime is 3309661. The next prime is 3309673. The reversal of 3309664 is 4669033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3309661) 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, 1012 + ... + 2764.

It is an arithmetic number, because the mean of its divisors is an integer number (276255).

Almost surely, 2^3309664 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 3309664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3315060).

3309664 is an abundant number, since it is smaller than the sum of its proper divisors (3320456).

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

3309664 is a wasteful number, since it uses less digits than its factorization.

3309664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 3309664 is about 1819.2481963712. The cubic root of 3309664 is about 149.0257451422.

The spelling of 3309664 in words is "three million, three hundred nine thousand, six hundred sixty-four".