1689053872 has 20 divisors (see below), whose sum is σ = 3570046056. Its totient is φ = 767751680.

The previous prime is 1689053867. The next prime is 1689053897. The reversal of 1689053872 is 2783509861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4798273 + ... + 4798624.

Almost surely, 2^1689053872 is an apocalyptic number.

It is an amenable number.

1689053872 is an abundant number, since it is smaller than the sum of its proper divisors (1880992184).

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

1689053872 is a wasteful number, since it uses less digits than its factorization.

1689053872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9596916 (or 9596910 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 1689053872 is about 41098.1005887133. The cubic root of 1689053872 is about 1190.9161017667.

The spelling of 1689053872 in words is "one billion, six hundred eighty-nine million, fifty-three thousand, eight hundred seventy-two".