1686412884 has 24 divisors (see below), whose sum is σ = 4237653280. Its totient is φ = 518896224.

The previous prime is 1686412873. The next prime is 1686412891. The reversal of 1686412884 is 4882146861.

It is a happy number.

It is a super-4 number, since 4×1686412884⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5405014 + ... + 5405325.

Almost surely, 2^1686412884 is an apocalyptic number.

It is an amenable number.

1686412884 is an abundant number, since it is smaller than the sum of its proper divisors (2551240396).

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

1686412884 is a wasteful number, since it uses less digits than its factorization.

1686412884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10810359 (or 10810357 counting only the distinct ones).

The product of its digits is 589824, while the sum is 48.

The square root of 1686412884 is about 41065.9577265647. The cubic root of 1686412884 is about 1190.2950764151.

The spelling of 1686412884 in words is "one billion, six hundred eighty-six million, four hundred twelve thousand, eight hundred eighty-four".