3289691664 has 80 divisors (see below), whose sum is σ = 10791591040. Its totient is φ = 939911040.

The previous prime is 3289691663. The next prime is 3289691683. The reversal of 3289691664 is 4661969823.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3289691664.

It is not an unprimeable number, because it can be changed into a prime (3289691663) 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, 540907 + ... + 546954.

It is an arithmetic number, because the mean of its divisors is an integer number (134894888).

Almost surely, 2^3289691664 is an apocalyptic number.

It is an amenable number.

3289691664 is an abundant number, since it is smaller than the sum of its proper divisors (7501899376).

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

3289691664 is a wasteful number, since it uses less digits than its factorization.

3289691664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087885 (or 1087873 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 3289691664 is about 57355.8337399083. The cubic root of 3289691664 is about 1487.2537230766.

The spelling of 3289691664 in words is "three billion, two hundred eighty-nine million, six hundred ninety-one thousand, six hundred sixty-four".