684411768 has 80 divisors (see below), whose sum is σ = 2017917000. Its totient is φ = 216126144.

The previous prime is 684411757. The next prime is 684411773. The reversal of 684411768 is 867114486.

684411768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15483 + ... + 40106.

Almost surely, 2^684411768 is an apocalyptic number.

It is an amenable number.

684411768 is an abundant number, since it is smaller than the sum of its proper divisors (1333505232).

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

684411768 is a wasteful number, since it uses less digits than its factorization.

684411768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55626 (or 55613 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 684411768 is about 26161.2646483307. The cubic root of 684411768 is about 881.2635807776.

The spelling of 684411768 in words is "six hundred eighty-four million, four hundred eleven thousand, seven hundred sixty-eight".