684838443 has 8 divisors (see below), whose sum is σ = 918586368. Its totient is φ = 453824744.

The previous prime is 684838417. The next prime is 684838471. The reversal of 684838443 is 344838486.

684838443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 684838443 - 2⁵ = 684838411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 684838392 and 684838401.

It is not an unprimeable number, because it can be changed into a prime (684838403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682971 + ... + 683972.

It is an arithmetic number, because the mean of its divisors is an integer number (114823296).

Almost surely, 2^684838443 is an apocalyptic number.

684838443 is a deficient number, since it is larger than the sum of its proper divisors (233747925).

684838443 is a wasteful number, since it uses less digits than its factorization.

684838443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367113.

The product of its digits is 1769472, while the sum is 48.

The square root of 684838443 is about 26169.4180867669. The cubic root of 684838443 is about 881.4466747594.

The spelling of 684838443 in words is "six hundred eighty-four million, eight hundred thirty-eight thousand, four hundred forty-three".