684479422 has 16 divisors (see below), whose sum is σ = 1120459392. Its totient is φ = 311015320.

The previous prime is 684479417. The next prime is 684479423. The reversal of 684479422 is 224974486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684479423) 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, 113733 + ... + 119599.

It is an arithmetic number, because the mean of its divisors is an integer number (70028712).

Almost surely, 2^684479422 is an apocalyptic number.

684479422 is a deficient number, since it is larger than the sum of its proper divisors (435979970).

684479422 is a wasteful number, since it uses less digits than its factorization.

684479422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11183.

The product of its digits is 774144, while the sum is 46.

The square root of 684479422 is about 26162.5576349102. The cubic root of 684479422 is about 881.2926174115.

The spelling of 684479422 in words is "six hundred eighty-four million, four hundred seventy-nine thousand, four hundred twenty-two".