1689096806 has 4 divisors (see below), whose sum is σ = 2533645212. Its totient is φ = 844548402.

The previous prime is 1689096797. The next prime is 1689096817. The reversal of 1689096806 is 6086909861.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422274200 + ... + 422274203.

It is an arithmetic number, because the mean of its divisors is an integer number (633411303).

Almost surely, 2^1689096806 is an apocalyptic number.

1689096806 is a deficient number, since it is larger than the sum of its proper divisors (844548406).

1689096806 is an equidigital number, since it uses as much as digits as its factorization.

1689096806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844548405.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 1689096806 is about 41098.6229209690. The cubic root of 1689096806 is about 1190.9261922992.

The spelling of 1689096806 in words is "one billion, six hundred eighty-nine million, ninety-six thousand, eight hundred six".