3489821664 has 48 divisors (see below), whose sum is σ = 10469467008. Its totient is φ = 997091712.

The previous prime is 3489821663. The next prime is 3489821669. The reversal of 3489821664 is 4661289843.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489821663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2595922 + ... + 2597265.

It is an arithmetic number, because the mean of its divisors is an integer number (218113896).

Almost surely, 2^3489821664 is an apocalyptic number.

It is an amenable number.

3489821664 is an abundant number, since it is smaller than the sum of its proper divisors (6979645344).

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

3489821664 is a wasteful number, since it uses less digits than its factorization.

3489821664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193207 (or 5193199 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 3489821664 is about 59074.7125596054. The cubic root of 3489821664 is about 1516.8212748934.

The spelling of 3489821664 in words is "three billion, four hundred eighty-nine million, eight hundred twenty-one thousand, six hundred sixty-four".