1683806808 has 32 divisors (see below), whose sum is σ = 4219588800. Its totient is φ = 559926048.

The previous prime is 1683806759. The next prime is 1683806827. The reversal of 1683806808 is 8086083861.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 73666 + ... + 93777.

It is an arithmetic number, because the mean of its divisors is an integer number (131862150).

Almost surely, 2^1683806808 is an apocalyptic number.

It is an amenable number.

1683806808 is an abundant number, since it is smaller than the sum of its proper divisors (2535781992).

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

1683806808 is a wasteful number, since it uses less digits than its factorization.

1683806808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167871 (or 167867 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 1683806808 is about 41034.2150893617. The cubic root of 1683806808 is about 1189.6816246892.

The spelling of 1683806808 in words is "one billion, six hundred eighty-three million, eight hundred six thousand, eight hundred eight".