1689385016 has 16 divisors (see below), whose sum is σ = 3455560440. Its totient is φ = 767902240.

The previous prime is 1689385007. The next prime is 1689385037. The reversal of 1689385016 is 6105839861.

It is a congruent number.

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, 9598691 + ... + 9598866.

Almost surely, 2^1689385016 is an apocalyptic number.

It is an amenable number.

1689385016 is an abundant number, since it is smaller than the sum of its proper divisors (1766175424).

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

1689385016 is a wasteful number, since it uses less digits than its factorization.

1689385016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19197574 (or 19197570 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1689385016 is about 41102.1290932720. The cubic root of 1689385016 is about 1190.9939242208.

The spelling of 1689385016 in words is "one billion, six hundred eighty-nine million, three hundred eighty-five thousand, sixteen".