684389322 has 24 divisors (see below), whose sum is σ = 1504978176. Its totient is φ = 224724456.

The previous prime is 684389297. The next prime is 684389323. The reversal of 684389322 is 223983486.

It is not an unprimeable number, because it can be changed into a prime (684389323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282538 + ... + 284949.

It is an arithmetic number, because the mean of its divisors is an integer number (62707424).

Almost surely, 2^684389322 is an apocalyptic number.

684389322 is an abundant number, since it is smaller than the sum of its proper divisors (820588854).

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

684389322 is a wasteful number, since it uses less digits than its factorization.

684389322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567562 (or 567559 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 684389322 is about 26160.8356517906. The cubic root of 684389322 is about 881.2539466852.

The spelling of 684389322 in words is "six hundred eighty-four million, three hundred eighty-nine thousand, three hundred twenty-two".