1689096808 has 64 divisors (see below), whose sum is σ = 3823142400. Its totient is φ = 683432640.

The previous prime is 1689096797. The next prime is 1689096817. The reversal of 1689096808 is 8086909861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324063 + ... + 329233.

It is an arithmetic number, because the mean of its divisors is an integer number (59736600).

Almost surely, 2^1689096808 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 1689096808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1911571200).

1689096808 is an abundant number, since it is smaller than the sum of its proper divisors (2134045592).

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

1689096808 is a wasteful number, since it uses less digits than its factorization.

1689096808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510 (or 5506 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 1689096808 is about 41098.6229453007. The cubic root of 1689096808 is about 1190.9261927692.

The spelling of 1689096808 in words is "one billion, six hundred eighty-nine million, ninety-six thousand, eight hundred eight".