1689049912 has 32 divisors (see below), whose sum is σ = 3472272000. Its totient is φ = 763884000.

The previous prime is 1689049877. The next prime is 1689049927. The reversal of 1689049912 is 2199409861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30714 + ... + 65737.

It is an arithmetic number, because the mean of its divisors is an integer number (108508500).

Almost surely, 2^1689049912 is an apocalyptic number.

It is an amenable number.

1689049912 is an abundant number, since it is smaller than the sum of its proper divisors (1783222088).

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

1689049912 is a wasteful number, since it uses less digits than its factorization.

1689049912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96667 (or 96663 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 1689049912 is about 41098.0524112761. The cubic root of 1689049912 is about 1190.9151710620.

The spelling of 1689049912 in words is "one billion, six hundred eighty-nine million, forty-nine thousand, nine hundred twelve".