1689871104 has 216 divisors, whose sum is σ = 5131478352. Its totient is φ = 534159360.

The previous prime is 1689871103. The next prime is 1689871109. The reversal of 1689871104 is 4011789861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1689871104.

It is not an unprimeable number, because it can be changed into a prime (1689871103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3665434 + ... + 3665894.

Almost surely, 2^1689871104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689871104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2565739176).

1689871104 is an abundant number, since it is smaller than the sum of its proper divisors (3441607248).

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

1689871104 is a wasteful number, since it uses less digits than its factorization.

1689871104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1689871104 is about 41108.0418409829. The cubic root of 1689871104 is about 1191.1081417878.

The spelling of 1689871104 in words is "one billion, six hundred eighty-nine million, eight hundred seventy-one thousand, one hundred four".